12. Classify the statement below as a descriptive or inferential statistic and explain why.
Because of the SG distance learners, Robin expects to serve 12% less meals this year than last year.
Answers
The given statement is a descriptive statistic.
What is descriptive statistics?Descriptive statistics are relatively short informational coefficients that summarize a given data set, which can be a representation of the entire population or a sample of a population. Descriptive statistics are divided into measurements of central tendency and measures of variability (spread). Descriptive statistics are used to describe or summarize the data in meaningful and useful ways. It would be useful to know, for example, that each of the participants in with us example wore blue shoes. Even so, it'd be useful to know how evenly distributed their anxiety ratings were.So, the statement "Robin expects to serve 12% fewer meals this year than last year" is a descriptive statistic.
Therefore, the given statement is a descriptive statistic.
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Related Questions
Which equation describes the line with a slope of 5 and y-intercept of -3?
A y=-3x + 5
C y = 5x - 3
By= 3x - 5
D y = 5x + 3
Pls helpp
Answers
Answer:
\(y = 5m - 3\)Step-by-step explanation:
to understand the solving stepsyou need to know about:linear equationPEMDASgiven:slope or m=5
y-intercept or b=-3
to find:\(y = mx + b\)
let's solve:according to the question
\(y = 5m + ( - 3)\)
\(y = 5m - 3 \)
Consider the relation {(a, b) | a and b have the same age} on the set of all people.
a. Identify the properties of the relation R.
b. Identify the properties that the given relation satisfies.
Answers
The relation R is an equivalence relation, satisfying the properties of reflexivity, symmetry, and transitivity.
a. The relation R, which is defined as {(a, b) | a and b have the same age}, can be identified as an equivalence relation.
b. The relation R satisfies the properties of reflexivity, symmetry, and transitivity.
Reflexivity: For any person a, (a, a) belongs to R because a has the same age as itself.
Symmetry: If (a, b) belongs to R, then (b, a) also belongs to R because if a and b have the same age, then b and a also have the same age.
Transitivity: If (a, b) and (b, c) belong to R, then (a, c) also belongs to R because if a has the same age as b, and b has the same age as c, then a and c have the same age.
Therefore, the relation R is an equivalence relation that satisfies the properties of reflexivity, symmetry, and transitivity.
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Sheela finished her music class at 16:30 hour. If the music class is for 1 hour 45 min, at what time did she start the class?
Answers
Answer:
14:45
Step-by-step explanation:
14:45 (+1hr = 15:45)
15:45 (+45 mins = 16:30
Answer:
14: 45
Step-by-step explanation:
Set
Write the indicated trigonometric ratios. If any sides of the triangle are missing, find them before
determining the ratio.
7.
8.
C
cos(A) =
sin(A) =
tan(A) =
7
4
B
8.06
A
cos(B) =
sin(B) =
tan (B) =
Answers
The value of trigonometric ratios is \(cosA= 0.4962,cosB=0.8684\) , \(sinA=0.8684, sinB=0.4962, tanA=1.75, tanB=0.5714\) and all the sides are given.
What is trigonometric ratios?In mathematics, the trigonometric ratios are real functions which relate an angle of a right-angled triangle to ratios of two side length. They are widely used in all sciences that are related to geometry, such as navigation, solid mechanics, celestial mechanics and many others.
Side is defined as one of the outer surfaces of something. It is an aspect of a geometrical shape. The shapes that we see are made up of lines(line segments) and points (vertices).
\(CosA= 4/8.06=0.4962\)
\(CosB=7/8.06=0.8684\)
\(SinA=7/8.06=0.8684\)
\(SinB=4/8.06=0.4962\)
\(TanA=7/4=1.75\)
\(TanB=4/7=0.5714\)
Therefore, The value of trigonometric ratios is \(cosA= 0.4962,cosB=0.8684\) , \(sinA=0.8684, sinB=0.4962, tanA=1.75, tanB=0.5714\) and all the sides
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francisco and meredith are 230 feet apart when they start walking toward one another. they are walking at the same speed, so whenever francisco travels some number of feet, meredith travels the same number of feet. let x x represent the number of feet francisco has traveled since he started walking toward meredith. write an expression in terms of x x that represents the number of feet francisco has walked toward meredith since they started walking. preview write an expression in terms of x x that represents the number of feet meredith has walked toward francisco since they started walking. preview write an expression in terms of x x that represents the total number of feet francisco and meredith have walked toward one another since they started walking. preview write an expression in terms of x x that represents the distance (in feet) between francisco and meredith. preview
Answers
The expressions are:
- Francisco's distance: x
- Meredith's distance: x
- Total distance: 2x
- Distance between Francisco and Meredith: 230 - 2x.
To answer your question, let's break it down into the different expressions:
1. The expression that represents the number of feet Francisco has walked toward Meredith since they started walking can be written as x.
2. The expression that represents the number of feet Meredith has walked toward Francisco since they started walking can also be written as x.
3. The expression that represents the total number of feet Francisco and Meredith have walked toward one another since they started walking can be written as x + x, which simplifies to 2x.
4. The expression that represents the distance between Francisco and Meredith can be written as 230 - (x + x), which simplifies to 230 - 2x.
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Sara is going to wrap a birthday present for her niece. She has a single piece of wrapping paper with an area of 400 in2.
Sara has 3 gift boxes she can use. The boxes are shown below with their measurements.
Select the box or boxes that Sara would be able to use for the gift that she could completely wrap with her piece of wrapping paper.
Answers
Answer:
There are plenty of unique ways to wrap presents beautifully. The quickest way that doesn't even require a box: Create a gift bag out of another ..
Step-by-step explanation:
There's something about a pile of presents under the tree that catches the eye—no matter how they're wrapped. But when your gifts look like something straight out of a storybook, it instantly adds to the Christmas magic.
We know what you're thinking, though: Who has time for that between decorating the house, shopping for your loved ones, prepping for the Christmas party, and planning your holiday meal? What if we told you that creating presents that look professionally wrapped is actually fairly simple?
There are plenty of unique ways to wrap presents beautifully. The quickest way that doesn't even require a box: Create a gift bag out of another household staple, like an old (but clean) pillowcase or a brown paper bag. You'd be surprised what a simple stamp, paint pen, or stylish ribbon can do to breathe new life into these objects. But if you have a little more time to get creative, why not raid your craft closet and make something truly special and Pinterest-worthy, like lace-covered packages or custom paper created by your kids?
No matter which direction you go and no matter what holiday you're celebrating—Christmas, a kids' birthday, or a life event like a wedding or a baby shower—you'll find plenty of inspiration, plus step-by-step gift wrapping instructions, here. When you're done, we're certain that present is going to be so pretty, it'll almost be too hard to open
The Sara would choose first box or third box to pack the gift because the paper available is sufficient for the first or third box.
What is a cuboid?It is defined as the six-faced shape, a type of hexahedron in geometry.
It is a three-dimensional shape.
Sara has a single piece of wrapping paper with an area of 400 in2,
Surface area of the paper = 400 square in
To find right box that Sara would be able to use for the gift that she could completely wrap with her piece of wrapping paper we must find the surface area of the each box.
The surface area of the cuboid is given by:
SA = 2(lw+wh+lh)
Where, l is the length, w is the width, and h is the height of the cuboid.
For the first box:
l = 15 in, w = 4.2 in, and h = 4.5 in
SA = 2(15×4.2+4.2×4.5+15×4.5)
SA = 2(63+18.9+67.5)
SA = 298.8 square in
For the second box:
l = 6.3 in, w = 8.1 in, and h = 12 in
SA = 2(6.3×8.1+8.1×12+12×6.3)
SA = 2(51.03+97.2+75.6)
SA = 447.66 square in
For the third box:
l = 7.5 in, w = 7.5 in, and h = 7.5 in
SA = 2(7.5×7.5+7.5×7.5+7.5×7.5)
SA = 2(168.75)
SA = 337.5 square in
If we compare surface area of the papaer to surface area of the boxes, we will see Sara can use first box or either third box becasue surface area of the paper which is 400 in² is sufficient for the boxes whose surface areas are 298.8 square in, and 337.5 square in.
Thus, the Sara would choose first box or third box to pack the gift because the paper available is sufficient for the first or third box.
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an orchard owner is investigating a new formula of fertilizer to determine if it produces more apples per tree compared to a current popular brand.part a: which of the following design is most appropriate: observational study, experiment, census, or sample survey? explain your reasoning. (3 points)part b: explain how you would implement the design you selected in part a. (4 points)part c: explain one benefit your design would provide. (3 points)
Answers
The most appropriate design would be experiment. Implementation of the design would be by selection of trees, then the application of fertilizer, followed by data collection and statistical analysis.
a) Most appropriate design: Experiment
The orchard owner wants to determine if a new formula of fertilizer produces more apples per tree compared to a current popular brand. To make a causal conclusion, an experiment would be the most appropriate design. In an experiment, the orchard owner would randomly assign the trees to receive either the new fertilizer formula or the current popular brand and then compare the number of apples produced. This allows the orchard owner to control for other variables and isolate the effect of the fertilizer on the number of apples produced.
b) Implementation:
Selection of trees: The orchard owner would randomly select a sample of trees from their orchard and divide them into two groups: the experimental group (receiving the new fertilizer formula) and the control group (receiving the current popular brand).
Application of fertilizer: Both the experimental and control groups would receive the same amount of fertilizer, but the experimental group would receive the new formula while the control group would receive the current popular brand.
Data collection: The orchard owner would measure the number of apples produced by each tree in both the experimental and control groups.
Statistical analysis: The orchard owner would use appropriate statistical tests to compare the number of apples produced by each group and determine if there is a significant difference between the two.
c) Benefit:
One benefit of this experimental design is that it allows the orchard owner to determine causality. By randomly assigning the trees to receive either the new fertilizer formula or the current popular brand, the orchard owner can be confident that any difference in the number of apples produced is due to the fertilizer and not other factors. This is important for making decisions about which fertilizer to use in the future.
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If someone can answer this your a life saver
Answers
Answer:
m = 2
Step-by-step explanation:
Slope = rise/run or (y2 - y1) / (x2 - x1)
P = (-5, 2) Q = (-3, 6)
We see the y increase by 4 and x increase by 2, so the slope is
m = 4/2 = 2
Which of the following is the missing justification?
Step Justification 1/5x+6=5 Given
x + 30 = 25 ???
x = −5 Subtraction Property of Equality
A.Multiplication Property of Equality
B.Distributive Property
C.Addition Property of Equality
D.Division Property of Equality
Answers
Answer:
The correct answer is Option A: Multiplication Property of Equality
Step-by-step explanation:
Given equation is:
\(\frac{1}{5}x+6 = 5\)
The given equation is a linear equation in one variable. Different equality properties are used to solve equations like these.
First of all the denominator with 1/5x has to be eliminated for which the whole equation will be multiplied by 5
\(5 * \frac{1}{5}x + 5* 6 = 5*5\\x+30= 25\)
This property is called multiplication property of equality.
Hence,
The correct answer is Option A: Multiplication Property of Equality
Answer:
A. Multiplication Property of Equality
Step-by-step explanation:
if a is any rectangular matrix prove that a*a and aa* are both hermitian
Answers
A matrix A is said to be hermitian if it satisfies the property A = A*
A* Means the conjugate transpose of A
Here
Given that A is a rectangular matrix.
we can prove that AA and AA are both hermitian by showing that AA = (AA)* and AA* = (AA*)*
we will prove that A*A is hermitian:
(AA) = (A*)A = A*A
AA = (AA)
so we can see that it is "AA" indeed hermitian,
Now we will prove that AA* is hermitian
(AA*)* = A*(A*)* = A*A
AA* = (AA*)
AA is indeed hermitian.
given any rectangular matrix A, we have shown that AA and AA are both hermitian, as they both satisfy the property of A = A*.
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A matrix A is said to be hermitian if it satisfies the property A = A*
A* Means the conjugate transpose of A
Given that A is a rectangular matrix.
we can prove that AA and AA are both hermitian by showing that AA = (AA)* and AA* = (AA*)*
we will prove that A*A is hermitian:
(AA) = (A*)A = A*A
AA = (AA)
so we can see that it is "AA" indeed hermitian,
Now we will prove that AA* is hermitian
(AA*)* = A*(A*)* = A*A
AA* = (AA*)
AA is indeed hermitian.
given any rectangular matrix A, we have shown that AA and AA are both hermitian, as they both satisfy the property of A = A*.
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The width of a rectangle is 2 cm less than the length. The
perimeter is greater than 28 inches. Describe the dimensions
of the rectangle.
Length=?
Width=?
Answers
Answer:
2+2+28+28=60 is the answer of the perimeter
Step-by-step explanation:
Inequalities help us to compare two unequal expressions. The length of the rectangle can be 19 cm, while its width will be 17 cm.
What are inequalities?Inequalities help us to compare two unequal expressions. Also, it helps us to compare the non-equal expressions so that an equation can be formed.
It is mostly denoted by the symbol <, >, ≤, and ≥.
Let the length of the rectangle be represented by x centimeters. Given the width of a rectangle is 2 cm less than the length. Therefore, the width of the rectangle is (x-2) centimeters.
Since the perimeter of the rectangle should be greater than 28 inches, therefore,
Perimeter of the rectangle > 28 inches × 2.54 = 71.12 centimeters
Now, given the perimeter is greater than 28 inches. Therefore,
2[x+(x-2)] > 71.12
x + (x-2) > 35.56
x + x - 2 > 35.56
2x - 2 > 35.56
2x > 37.56
x > 18.78
x = 19
Thus, the length of the rectangle can be 19 cm, while its width will be 17 cms.
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Which of the following is equal to the fraction below?
(4/5)^6
Answers
Answer:
4096/15,625
Step-by-step explanation:
The reason is because the power is distributed individually within the fraction. Since the fraction is already fully simplified, 4096/15625 multiplied by itself is also simplified.
Thus the answer is 4096/15,625 = (4^6)/(5^6)
If i drive from my town to town a and then to town b and the journey time was 50 minutes what is my average speed
Answers
Step-by-step explanation:
distance must be given
average speed is distance and time
Determine when the following expression is undefined: 17+12r / 3r2-15r-120
Answers
The expression 17+12r / 3r^2-15r-120 is undefined when the denominator (3r^2-15r-120) equals zero.
To determine when the expression is undefined, we need to find the values of r that make the denominator zero. We can do this by setting the denominator equal to zero and solving for r. The equation 3r^2-15r-120 = 0 can be factored as (3r+15)(r-8) = 0. By setting each factor equal to zero, we find that r = -5 and r = 8.
Therefore, the expression 17+12r / 3r^2-15r-120 is undefined when r is equal to -5 or 8. In these cases, the denominator becomes zero, which is not allowed in mathematical operations. For any other value of r, the expression is well-defined and can be evaluated.
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A quadrilateral has no equal angles and only one pair of parallel sides.
What type of quadrilateral is it?
Answers
Answer:
A trapezoid
Step-by-step explanation:
One pair of parallel sides
The table shows the number of students that are enrolled in Geometry at Eastlake High School If the pattern continues, how many students would you expect to be enrolled in 2005?
Answers
Answer:
Step-by-step explanation:
Plsss helppppppp:))))))
Answers
Answer:
5
Step-by-step explanation:
because it is asking what minus 9 is equal to -4
Answer:
5
Step-by-step explanation:
5 - 9= - 4
I don't know if this is confusing but you could also just subtract 5 from 9 (9-5) which is 4 and then put a - in front of it
A student has two options to purchase a laptop.
Option 1: Pay $540 plus 15% sales tax now.
Option 2: Pay exactly $120 now and then $58 each month for 9 months.
What is the approximate percent increase in how much the student pays with Option 2 versus Option 1?
Responses
Answers
Approximate percent increase in how much the student pays with Optin 2 versus Option is 20%
How to find Percentage?$540 plus 15% sales tax now.=$515
Pay exactly $120 now and then $58 each month for 9 months=$642
There is no dimension to percentages. As a result, it is known as a dimensionless number. When we say a number is 50% of anything, we mean that it is 50% of everything.As in 0.6%, 0.25%, etc., percentages can also be expressed as decimals or fractions. The grades earned in any topic are calculated in terms of percentages in academics. Ram, for instance, scored 78% in his final exam. This percentage is determined using Ram's overall grade point average (GPA) across all disciplines. We must apply a different formula, like the one shown below, to determine the percentage of a number.X Equals P% of NumberIf we don't use the percent sign, we must write the calculations above as P/100 * Number = X.To learn more about Percentage refer to:
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Please help, it’s not college math!!
Answers
Answer: The first answer choice
AKA: y = -1.74x + 46.6
Step-by-step explanation:
A correlation coefficient is a statistic that tells the.
Answers
A correlation coefficient is a statistic that tells us the strength and direction of the linear relationship between two variables.
The correlation coefficient is a measure of the degree of association between two variables. It quantifies how closely the data points align along a straight line. The coefficient can range from -1 to +1, where -1 represents a perfect negative linear relationship, +1 represents a perfect positive linear relationship, and 0 indicates no linear relationship.
The sign of the coefficient indicates the direction of the relationship, while the magnitude indicates the strength. A correlation coefficient of 0 does not necessarily imply the absence of any relationship; it only means that there is no linear association between the variables. It is important to note that correlation does not imply causation, as other factors may be influencing the relationship.
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Plz help asap with a explanation of why that’s the answer
Answers
Answer:
1st option
Step-by-step explanation:
y = 1/2x + 2
Answer:
the first one
remember. y=mx+b
mx= slope
b= y intercept
the slope is positive and the slope is rise over run. the y intercept is when the line the y axis (doesn't matter if it is negative or positive). this makes it a positive two
Find the 18th term of the arithmetic sequence whose common difference is d=5 and whose first term is a = 4.
Answers
Answer:
Step-by-step explanation:
a₁₈ = a₁+(18-1)d = 4+17·5 = 89
Can you show me the workings done to get these answers?
Answers
The initial value of the first investment was M = Rs.12,000,000 and the initial value of the second investment was N = Rs.16,000,000.
How did we get the values?Let's assume the initial investment in the first investment be M and the initial investment in the second investment be N.
We know that the annual return from the first investment is 3% of M and the annual return from the second investment is 5% of N.
So, the total annual return (T) is:
T = 0.03M + 0.05N = 1160000
The investor increases his investment in the first investment by 25%, so the new investment in the first investment becomes:
M1 = M + 0.25M = 1.25M
And the new annual return from the first investment becomes:
R1 = 0.03 * 1.25M = 0.0375M
Similarly, the new investment in the second investment becomes:
N1 = N + 0.40N = 1.40N
And the new annual return from the second investment becomes:
R2 = 0.05 * 1.40N = 0.07N
So, the new total annual return (T1) is:
T1 = R1 + R2 = 0.0375M + 0.07N
And the increase in the total annual return is:
410,000 = T1 - T
We have 2 equations with 2 variables (M and N), so we can solve for them.
0.0375M + 0.07N = 0.03M + 0.05N + 410000
Expanding and solving the equation we get:
M = 12,000,000
N = 16,000,000
So, the initial value of the first investment was M = Rs.12,000,000 and the initial value of the second investment was N = Rs.16,000,000.
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Subtract.
5/7−2/5
Enter your answer as a fraction in simplest form by filling in the boxes.
Answers
Answer:
11/35
Step-by-step explanation:
Make the denominator the same and subtract
5/7 turns into 25/35 and 2/5 turns into 14/35 that gives you 11/35
5/7-2/5= 11/35
You need to make them have the same second half, so u get them to the least common factor of 7 and 5 which is 35. you would multiply 5/7 by5
5/7 x 5 = 25/35
And you would multiply 2/5 by 7
2/5 x 7 = 14/35
Then you would subtract 25/35 by 14/35
25/35 - 14/35 = 11/35
This is simplified as much as it can be, because 11 is a prime number so u would have to be able to divide 35 by 11 which does not come out as a whole number so u cant do that for a fraction causing it to stay as 11/35
y=x/4+1/2 find the x and y Pls help asap
Answers
Answer:
y = 1/4x + 1/2 and x = -2 +4y
Step-by-step explanation:
Solving it in a way that x/4 is a fraction and not division so you would make that 1/4x. y = x/4 +1/2 x/4 is 1/4x so then you subtract 1/2 from both sides to get y - 1/2 = 1/4x. You can then divide 1/4 on both sides. -1/2 divided by 1/4 is -2 and 1/4y. This will get your answer of x = 1/4y -2 for x. Y is just 1/4x + 1/2
What is the value of z?
N
11
z+25°
Z-27°
Z-11°
Answers
Check the picture below.
\(z+25=(z-27) + (z-11)\implies z+25=2z-38 \\\\\\ 25=z-38\implies \boxed{63=z}\)
I NEED AN ANSWER ASAP PLEASE
Answers
Step-by-step explanation:
the correct answer is option a 6a-7
HEY guys I’m back Nooooo I was so happy I didn’t have to use this but Can Someone help me do this I’ll Mark you The Brainliest Pls I need HELPPPPP!
Answers
Answer:
hey cutie
Step-by-step explanation:
Answer:
Language:
1. Circle All terms
2. 12 or 13
3. 8
4. 12 or 13
Plot:
Get a graph for this one, the number is the first parameter is x, find that x value along the x axis then after finishing it locate v, find y value along the y axis.
Solve:
1. x = 3
2. x = 1
3. x = 3
4. x = x = 5
5. x = 8
6. x = 12
7. x = 9
8. x = 4
9. x = 3
10. x = 6
11. x = 4
12. x = -12
13. x = 5
14. x = 6
15. x = 16
Step-by-step explanation:
Variables - in algebra is a symbol or a letter.
Constants - are numbers
Coefficients - are the numbers that are with variables
Use this description and circle the examples.
For the plot use a gird, or gets a coordinate plane.
Lastely for the Solve example minus or plus the constant with the coefficient and variable forum the constant outside that has been equal to. Then divide by the variable coefficient, and you will get your x value. Example:
34 - 13 = 21 / 7 thus x = 3
Worth 60 points for a rapid reply- find the area of each regular polygon. Answers are rounded to the nearest whole number.
Answers
The area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
How to calculate for the area of the polygonArea of regular polygon = 1/2 × apothem × perimeter
perimeter = (s)side length of octagon × (n)number of side.
apothem = s/[2tan(180/n)].
11 = s/[2tan(180/12)]
s = 11 × 2tan15
s = 5.8949
perimeter = 5.8949 × 12 = 70.7388
Area of dodecagon = 1/2 × 11 × 70.7388
Area of dodecagon = 389.0634 in²
Area of pentagon = 1/2 × 5.23 × 7.6
Area of pentagon = 19.874 in²
Therefore, the area of the regular polygons with 12 sides(dodecagon) and 5 sides (pentagon) are 389.06 in² and 19.87 in² respectively.
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Classify the equation 170x-1٫000=30(5x-30) as having one solution٫ no solution٫ or infinitely many solutions.
Answers
Answer:
The given equation. 170x - 1000 = 30 (5x - 30) can be classified as an equation with only one solution. x=5
Step-by-step explanation:
First you multiply the parenthesis by 30 to get 170x - 1000 = 150x -900. After this you move the terms together to get 170x - 150x = -900 + 1000. Next you combine the like terms to get 20x = 100. Next you need to get x by itself so you divide both sides by 20 to get x = 5.