The required answers ar(a)P = $2,000,r = 4.5%,n = 2 (b)$ 2985.17, (c) 4.45%
How to find the future value and interest?(A) Using the given information, we can identify the following values:
P = $2,000 (the present value or initial deposit)
r = 4.5% (the annual percentage rate)
n = 2 (the number of times per year that interest is compounded, since it is compounded semi-annually)
(B) To find the future value of the account balance after 9 years, we can use the formula:
\(S(t) = P(1 + r/n)^{nt}\)
where t is the time in years. Substituting the given values:
\(S(9) = $2,000(1 + 0.045/2)^{2*9}= $2,000(1.0225)^{18}\)
= $2,000(1.505016)
= $2985.17
Therefore, Monique will have $$2985.17 in the account in 9 years.
(C) The annual percentage yield (APY) takes into account the effect of compounding on the effective interest rate. It is calculated as:
\(APY = (1 + \frac{r}{n})^n - 1\)
Substituting the given values:
\(APY = (1 + 0.045/2)^2 - 1\)
= 0.0445 or 4.45%
Therefore, the annual percentage yield for the savings account is 4.45% rounded to 3 decimal places.
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Use the imagine to answer the following matching questions.
Name a minor arc-
Name a diameter-
Name a chord that is not a diameter-
Name a central angle-
Name a major arc-
Name a semicircle-
Name a radius-
1. RT
2. QS
3. PS
4. QTR
5.RS
6. QRP
7. QPS
According to the given figure, minor arc RS, diameter RT, chord PS, central angle QTR, major arc QRS, semicircle QRP, and radius RT
What is a major and minor arc?
An arc is a portion of the circumference of a circle. It is a curve that connects two points on the circumference. A major arc is an arc that measures more than 180 degrees, which is greater than a semi-circle. It covers more than half of the circumference of the circle. A minor arc is an arc that measures less than 180 degrees, which is less than a semi-circle. It covers less than half of the circumference of the circle.
If the angle formed by the two points and the center is less than 180 degrees, then it is a minor arc. Conversely, if the angle formed is greater than 180 degrees, then it is a major arc.
In summary, a major arc covers more than half of the circumference of the circle and measures more than 180 degrees. A minor arc covers less than half of the circumference of the circle and measures less than 180 degrees.
1. Minor arc RS
2. Diameter RT
3. Chord PS
4. Central angle QTR
5. Major arc QRS
6. Semicircle QRP
7. Radius RT
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. Solve the inequality. q + 12 – 2(q – 22) > 0 q > –32 q > 56 q < –32 q < 56
Given:
The inequality is
\(q+12-2(q-22)>0\)
To find:
The solution of the given inequality.
Solution:
We have,
\(q+12-2(q-22)>0\)
It can be written as:
\(q+12-2q+44>0\)
\((q-2q)+(12+44)>0\)
\(-q+56>0\)
Subtract 56 from both side.
\(-q>-56\)
Multiply both sides by -1 and change the inequality sign.
\(q<56\)
Therefore, the correct option is D.
Answer:
D: q < 56Step-by-step explanation:
Over the last three evenings, Ivanna received a total of 116 phone calls at the call center. The third evening, she received 4 times as many calls as the first
evening. The second evening, she received 10 fewer calls than the first evening. How many phone calls did she receive each evening?
Answer:
first evening = 21 phone calls
second evening = 11 phone calls
third evening = 84 phone calls
Step-by-step explanation:
Total phone calls = 116
Let
Number of calls in the first evening = x
The second evening = x - 10
The third evening = 4x
Total phone calls = first evening + second evening + third evening
116 = x + (x - 10) + 4x
116 = x + x - 10 + 4x
116 + 10 = 6x
126 = 6x
x = 126 / 6
x = 21 phone calls
Number of calls in the first evening = x
= 21 phone calls
The second evening = x - 10
= 21 - 10
= 11 phone calls
The third evening = 4x
= 4(21)
= 84 phone calls
Convert the angle radians to degrees
Answer:
160 degrees
Step-by-step explanation:
To change from radians to degrees, multiply by 180 / pi
8 pi/9 * 180/pi
160 degrees
The number of requests for assistance received by a towing service is a Poisson process with rate = 4 per hour. (a) Compute the probability that exactly ten requests are received during a particular 2-hour period. (b) If the operators of the towing service take a 30-min break for lunch, what is the probability that they do not miss any calls for assistance? (c) How many calls would you expect during their break? (d) If 30 requests were received between 10 a.m. and 5 p.m., how likely is it that 10 of them arrived between 2 p.m. and 5 p.m.?
Using Poisson distribution formula;
a. The probability of receiving exactly ten request with a 2 hour period is 9.9%.
b. The probability the operator does not miss any call for assistance is 13/5%
c. We expect 2 calls during the break.
d. The probability that 10 of them arrived within that period is 10.4%
What is the probability that exactly ten requests are received during a particular 2-hour period?(a) To compute the probability of receiving exactly ten requests during a particular 2-hour period, we can use the Poisson probability formula. For a Poisson process with rate λ, the probability of observing exactly k events in a given time interval is given by:
\(P(X = k) = (e^(^-^\lambda^) * \lambda^k) / k!\)
In this case, the rate λ is 4 requests per hour, and the time interval is 2 hours. Therefore, the average number of requests in a 2-hour period would be λ = 4 * 2 = 8.
Using k = 10 and λ = 8 in the formula, we have:
P(X = 10) = (e⁻⁸ * 8¹⁰) / 10!
Calculating this expression, we find the probability of exactly ten requests during the 2-hour period.
P(X = 10) = 0.099
P(X = 10) = 9.9%
(b) If the operators take a 30-minute lunch break, the probability that they do not miss any calls for assistance can be calculated by considering the probability that no calls occur during that 30-minute period.
The average number of requests in a 30-minute interval would be λ = 4 * 0.5 = 2. Therefore, using the Poisson probability formula, we can find the probability of no requests during this interval:
P(X = 0) = (e⁻² * 2⁰) / 0!
P(X = 0) = 0.135 = 13.5%
This probability represents the likelihood that no calls occur during the 30-minute lunch break.
(c) To determine the expected number of calls during the operators' 30-minute lunch break, we can use the average rate of requests per hour and adjust it for the 30-minute duration. The average rate is 4 requests per hour, which corresponds to 4/2 = 2 requests per 30 minutes. Therefore, we can expect approximately 2 calls during their break.
(d) If 30 requests were received between 10 a.m. and 5 p.m., and we want to determine the likelihood that 10 of them arrived between 2 p.m. and 5 p.m., we can use the Poisson distribution again.
First, we need to calculate the average number of requests during the 3-hour period from 2 p.m. to 5 p.m. The average rate is 4 requests per hour, so the average number of requests during this period would be λ = 4 * 3 = 12.
Using k = 10 and λ = 12 in the Poisson probability formula, we can find the probability of exactly 10 requests during the 3-hour period.
P(X = 10) = (e⁻¹² * 12¹⁰) / 10!
P(X = 10) = 0.105 = 10.5%
This probability represents the likelihood that 10 requests arrived between 2 p.m. and 5 p.m.
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please can someone help??????
Answer:
I think that the front one would be D) 20
Step-by-step explanation:
It is 4 times bigger than the smaller one so it is 20
Find the circumference of the circle. 6
Answer:
2 x 6 x 3.14 = 37.68
(a) How long did it take you to set up your building materials? How do you
(b) How long did it take to build each shelf
(continued)
12.) A librarian is arranging 54 books in an
array for a display. Which is a factor
pair that the librarian could use for
her display?
9
2 and 28
G 3 and 18
4 and 16
0 7 and 8
Arrays are used to represent data sets in rows and columns
The librarian could use 3 and 18 as a factor pair
How to determine the factor pairThe number of books is given as:
n = 54
Express 54 as a product of two numbers
54 = (1, 54), (2, 27),(3, 18) and (6, 9).
From the options, we have the following factor pair
3 and 18
Hence, the librarian could use 3 and 18 as a factor pair
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The amunt of money that college students spend on rent each month is usually between $300 and $600. However, there are a few students who spend $1,300. What measure of spread would be most appropriate to measure the amount of money that college student spend on rent per month? Explain in detail why or why not one of the below measures would be used.
A. Median
B. Range
C. Standard Deviation
D. Inquartile Range
The range would be the most appropriate measure of spread in this case because it takes into account the extreme values of $300 and $1,300 and provides a clear measure of the difference between them.
To measure the amount of money college students spend on rent per month, the most appropriate measure of spread would be the range. The range is the simplest measure of spread and is calculated by subtracting the lowest value from the highest value in a data set. In this case, the range would be $1,300 - $300 = $1,000.
The median would not be the best choice in this scenario because it only represents the middle value in a data set. It does not take into account extreme values like the $1,300 rent expense.
Standard deviation would not be the most appropriate measure of spread in this case because it calculates the average deviation of each data point from the mean. However, it may not accurately represent the spread when extreme values like the $1,300 rent expense are present.
The interquartile range (IQR) would not be the best choice either because it measures the spread of the middle 50% of the data set. It does not consider extreme values and would not accurately represent the range of rent expenses in this scenario.
In summary, the range would be the most appropriate measure of spread in this case because it takes into account the extreme values of $300 and $1,300 and provides a clear measure of the difference between them.
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Solve the following values for x and y :
Answer and Step-by-step explanation:
2(5x - 5) = 6x + 50
Distribute the 2 to the 5x and -5.
10x - 10 = 6x + 50
Add 10 to both sides, and subtract 6x from both sides.
4x = 60
Divide both sides by 4.
x = 15
5y + 5 = 7y - 9
Subtract 5 from both sides, and 7y from both sides.
-2y = -14
Divide both sides by -2.
y = 7
#teamtrees #PAW (Plant And Water)
help please no links or files
Answer:
-8.4 is the answer.(cross multiply )
Answer:
p= -8.4
Step-by-step explanation:
cross multiply
p=-7* 1.2
p=-8.4000001
Parallelogram P Q S R is shown. The length of P Q is (2 x + 5) centimeters and the length of R S is (4 x + 1) centimeters. In parallelogram PQSR, what is PQ
Answer:
9 cm
Step-by-step explanation:
Since PQ and RS are opposite each other, then in a parallelogram, the lengths will be congruent.
Therefore 2x+5=4x+1
2x=4
x=2
If you plug x=2 into the the original equation, you get 9 cm.
The measure of PQ is 9 centimeters.
Important information:
In parallelogram \(PQSR, PQ=(2x+5),RS=(4x+1)\)Parallelogram:The oppositie sides of a parallelogram are equal.
\(PQ=RS\)
\(2x+5=4x+1\)
\(5-1=4x-2x\)
\(4=2x\)
Divide both sides by 2.
\(2=x\)
Now, find the measure of PQ.
\(PQ=2x+5\)
\(PQ=2(2)+5\)
\(PQ=4+5\)
\(PQ=9\)
Therefore, the measure of PQ is 9 centimeters.
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Transcribed Image Text:Use the definition of Ax to write the matrix equation as a vector equation. 4 5 40 - 9 - 5 27 1 - 7 32 The matrix equation written as a vector equation is
The matrix equation [4 5 40 - 9 - 5 27 1 - 7 32] can be written as a vector equation Ax = <40 27 32>
A matrix is a rectangular array of numbers, often denoted as Ax, where A is the matrix itself and x is the vector of numbers that make up the columns of the matrix.
In this problem, we are given the matrix equation 4 5 40 - 9 - 5 27 1 - 7 32 and asked to use the definition of Ax to write it as a vector equation.
To do this, we need to identify which numbers are in the matrix A and which numbers are in the vector x.
The numbers 4, 5, -9, -5, 1, and -7 represent the matrix A, while the numbers 40, 27, and 32 represent the vector x.
Therefore, the matrix equation can be written as Ax = 40 27 32.
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Decide whether the following statement makes sense (or is clearly true) or does not make sense (or is clearly false). Explain your reasoning. I estimate that the probability of my getting married in the next 3 years is 0.7. math
The statement "I estimate that the probability of my getting married in the next 3 years is 0.7" does make sense.
As individuals, we can make personal estimates or predictions about events that are relevant to our lives, such as the probability of getting married in a certain timeframe. These estimates are based on our own subjective beliefs, experiences, and expectations. While they may not be based on precise mathematical calculations or rigorous statistical analysis, they can still reflect our personal opinions or perceptions.
In this case, the person is providing an estimate that they believe there is a 0.7 (or 70%) probability of getting married within the next 3 years. This estimate is a subjective assessment of their own chances based on various factors such as their current relationship status, personal goals, or cultural norms.
It is important to note that personal estimates like this are not necessarily based on concrete evidence or universally applicable probabilities. They can vary greatly from person to person and are subjective in nature. However, they can still hold personal meaning and influence one's decision-making or expectations regarding future events.
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please help me- speed
Answer:
4 km per hour
Step-by-step explanation:
Use the point (15,1) Since the line is proportional, the slope is y/x or 1/15
1/15 this is in minutes
1/15 x 60/1 To convert to hours
4 km per hour
Answer:
4 Km per hour
Step-by-step explanation:
average speed (S) is calculated as
S = \(\frac{D}{T}\) ( D is distance and T is time, in hours )
the distance ( vertical axis ) from her home to the newspaper shop is 1 Km
time ( horizontal axis )
from 09 00 to 09 30 has 6 divisions
then 1 division = 30 minutes ÷ 6 = 5 minutes
time to walk to the shop is 3 divisions = 3 × 5 = 15 minutes
15 minutes = \(\frac{15}{60}\) of an hour = \(\frac{1}{4}\) hour
then average speed from home to newspaper shop is
S = \(\frac{1}{\frac{1}{4} }\) = 4 Km per hour
If you score 76, 85, 97, and 82 on your math tests, what would your average score be?.
Answer:
The average is 85
Step-by-step explanation:
In order to find the average, you add all the number and divide with the number of numbers:
76+85+97+82= 340
340/4= 85
Can somone pls dont this im not good at matching things this is due at 4:00 :(:(:(
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A scientist uses a submarine to study ocean life.
She begins at sea level, which is an elevation of o feet.
She descends 23.6 feet.
• She then ascends 13.4 feet.
Next, she travels down a second time, 21.1 feet.
How many feet must she now rise to get back to sea level?
Answer:
31.3 feet
Step-by-step explanation:
-23.6+13.4 = -10.2
-10.2 - 21.1 = -31.3
Answer:
31.3 feet
Step-by-step explanation:
0 -23.6 + 13.4 - 21.1 = -31.3
So to get back to sea level she must ascend 31.3 feet.
Two-thirds of the people in a room are seated in three-fourths of the chairs. The rest of the people are standing. If there are 6 empty chairs, how many people are in the room?
Answer:
27 people
Step-by-step explanation:
If 6 chairs are empty, that means 1/4 of the chairs is 6.
6*4 = 24, the total amount of chairs.
24 - 6 = 18, the number of chairs occupied.
If 18 people is 2/3 of the amount of people, if we divide 18 by 2, getting 9, that is 1/3 of the amount of people.
9 * 3 = 27, the total amount of people.
Select all of the coefficients in the expression. 12xy3 2x5y 4x5y2 7x5y. 2 3 4 5 7 12
Answer:
Select all of the coefficients in the expression. 12xy^3+ 2x^5y +4x^5y^2 +7x^5y.
If we take an equation like 2xyz = 0 then,
The coefficient of x in 2xyz is term that is multiplied by x. so here the coefficient of x will be 2yz.
So here in the equation 12xy^3 +2x^5y +4x^5y^2 +7x^5y = 0 the coefficients will be:
First we take the common factor form the equation:
So we get form the equation is as ;
= xy * (12y^2 + 2x^4 + 4x^4y + 7x^4) so this basically represents multiplicative distribution law
if we simplify using exponent rule with same base
a^n . a^m = a^n+am
That is 12xy^(2+1) + 2x(4+1)y + 4x(4+1)y(1+1) + 7x(4+1)y
so,
12xy^3 +2x^5y +4x^5y^2 +7x^5y = 0
xy * (12y^2 + 2x^4 + 4x^4y + 7x^4) =0
So the coefficients are : xy and (12y^2 + 2x^4 + 4x^4y + 7x^4)
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Disclaimer: The question was given incomplete on the portal. Here is the complete question.
Question: Select all of the coefficients in the expression. 12xy^3+ 2x^5y +4x^5y^2 +7x^5y.
The coefficient in the expressions 12xy³, 2x⁵y, 4x⁵y² and 7x⁵y. will be 12, 2, 4 and 7 respectively.
We are given the expressions:
12xy³
2x⁵y
4x⁵y²
7x⁵y.
We need to identify the coefficients for the expression.
For the expression 12xy³, the coefficient will be 12 as it is the numerical value written with the variable.
Similarly, for the expression 2x⁵y , the coefficient will be 2 for the variable x⁵y.
For the expression 4x⁵y², the coefficient will be 4 for the variable x⁵y².
For the expression 7x⁵y, the coefficient will be 7 for the variable x⁵y.
Therefore, we get that, the coefficient in the expressions 12xy³, 2x⁵y, 4x⁵y² and 7x⁵y. will be 12, 2, 4 and 7 respectively.
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how many horizontal asymptotes can y=f(x) havea) 0b) 1c) 2d) 3e) 4
The number of horizontal asymptotes that a function can have depends on its behavior as x approaches positive or negative infinity.
a) If the function approaches a specific value or constant as x approaches positive or negative infinity, it can have 0 horizontal asymptotes.
b) If the function approaches the same value or constant as x approaches positive or negative infinity, it can have 1 horizontal asymptote.
c) If the function approaches different values or constants as x approaches positive or negative infinity, it can have 2 horizontal asymptotes.
d) It is not possible for a function to have exactly 3 horizontal asymptotes. Asymptotes come in pairs, so the number of horizontal asymptotes can be 0, 1, 2, or 4.
e) It is not possible for a function to have exactly 4 horizontal asymptotes. Asymptotes come in pairs, so the number of horizontal asymptotes can be 0, 1, 2, or 3.
the correct options are:
a) 0
b) 1
c) 2
d) 3
e) 4
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Someone pls pls pls help me with this, I dont understand it Btw I accidentally pressed b so dont pay attention to that
Answer:
Step-by-step explanation:
ol
Construct A Truth Table For The Following: Xyz + X(Y Z)' + X'(Y + Z) + (Xyz)' (X + Y')(X' + Z')(Y' + Z') Using De Morgan's Law
To construct a truth table for the given logical expression using De Morgan's Law, we'll break it down step by step and apply the law to simplify the expression.
Let's start with the given expression:
Xyz + X(Y Z)' + X'(Y + Z) + (Xyz)' (X + Y')(X' + Z')(Y' + Z')
Step 1: Apply De Morgan's Law to the term (Xyz)'
(Xyz)' becomes X' + y' + z'
After applying De Morgan's Law, the expression becomes:
Xyz + X(Y Z)' + X'(Y + Z) + (X' + y' + z')(X + Y')(X' + Z')(Y' + Z')
Step 2: Expand the expression by distributing terms:
Xyz + XY'Z' + XYZ' + X'Y + X'Z + X'Y' + X'Z' + y'z' + x'y'z' + x'z'y' + x'z'z' + xy'z' + xyz' + xyz'
Now we have the expanded expression. To construct the truth table, we'll create columns for the variables X, Y, Z, and the corresponding output column based on the expression.
The truth table will have 2^3 = 8 rows to account for all possible combinations of X, Y, and Z.
Here's the complete truth table:
```
| X | Y | Z | Output |
|---|---|---|--------|
| 0 | 0 | 0 | 0 |
| 0 | 0 | 1 | 0 |
| 0 | 1 | 0 | 0 |
| 0 | 1 | 1 | 1 |
| 1 | 0 | 0 | 0 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 0 | 1 |
| 1 | 1 | 1 | 1 |
```
In the "Output" column, we evaluate the given expression for each combination of X, Y, and Z. For example, when X = 0, Y = 0, and Z = 0, the output is 0. We repeat this process for all possible combinations to fill out the truth table.
Note: The logical operators used in the expression are:
- '+' represents the logical OR operation.
- ' ' represents the logical AND operation.
- ' ' represents the logical NOT operation.
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pls solve the q in the file
Answer:
\(\left \{ {{p=3} \atop {q=1}} \right.\)
Step-by-step explanation:
First, we'll expand \((x-p)^2+q\). It's equal to \(x^2-2px+p^2+q\).
Then, we'll compare this to \(x^2-6x+10\).
The terms \(x^2\) are the sameThe terms with \(x\) are \(-2px\) and \(-6x\) in the two expressions respectively, so they must be equal. We have \(-2px=-6x\), so p=3.The remaining terms are \((p^2+q)\) and \(10\). They must be equal. We have \(p^2+q=10\). Substituting in \(p=3\), we get \(9+q=10\), so q=1.Answer:
p = 3, q = 1
Step-by-step explanation:
Using the method of completing the square
add/ subtract ( half the coefficient of the x- term )² to x² - 6x
x² + 2(- 3)x + 9 - 9 + 10
= (x - 3)² + 1 ← in the form (x - p)² + q
with p = 3 and q = 1
help a girl out please
Answer:4
Step-by-step explanation:ts is = ed
Can someone help me with both of these? What do I do with the 68 and 79?
50 points!!!
Someone help pls, I can’t understand it and it’s due tomorrow :c
\({\large{\textsf{\textbf{\underline{\underline{Question \: 1 :}}}}}}\)
\(\star\:{\underline{\underline{\sf{\purple{Solution:}}}}}\)
❍ Arrange the given data in order either in ascending order or descending order.
2, 3, 4, 7, 9, 11
❍ Number of terms in data [n] = 6 which is even.
As we know,
\(\star \: \sf Median_{(when \: n \: is \: even)} = {\underline{\boxed{\sf{\purple{ \dfrac{ { \bigg (\dfrac{n}{2} \bigg)}^{th}term +{ \bigg( \dfrac{n}{2} + 1 \bigg)}^{th} term } {2} }}}}}\)
\(\\\)
\( \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ { \bigg (\dfrac{6}{2} \bigg)}^{th}term +{ \bigg( \dfrac{6}{2} + 1 \bigg)}^{th} term } {2} }\)
\(\\\)
\( \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ {3}^{rd} term +{ \bigg( \dfrac{6 + 2}{2} \bigg)}^{th} term } {2} }\)
\(\\\)
\( \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ {3}^{rd} term +{ \bigg( \cancel{ \dfrac{8}{2}} \bigg)}^{th} term } {2} }\)
\(\\\)
\( \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ {3}^{rd} term +{ 4}^{th} term } {2} }\)
• Putting,
3rd term as 4 and the 4th term as 7.
\(\longrightarrow \: \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ 4 + 7 } {2} }\)
\(\longrightarrow \: \sf Median_{(when \: n \: is \: even)} ={ \dfrac{ 11} {2} }\)
\(\longrightarrow \: \sf Median_{(when \: n \: is \: even)} = \purple{5.5}\)
\(\\\)
\({\large{\textsf{\textbf{\underline{\underline{Question \: 2 :}}}}}}\)
\(\star\:{\underline{\underline{\sf{\red{Solution:}}}}}\)
❍ Arrange the given data in order either in ascending order or descending order.
1, 2, 3, 4, 5, 6, 7
❍ Number of terms in data [n] = 7 which is odd.
As we know,
\(\star \: \sf Median_{(when \: n \: is \: odd)} = {\underline{\boxed{\sf{\red{ { \bigg( \frac{n + 1}{2} \bigg)}^{th} term}}}}}\)
\(\\\)
\( \sf Median_{(when \: n \: is \: odd)} = {{ \bigg(\dfrac{ 7 + 1 } {2} \bigg) }}^{th} term\)
\(\\\)
\( \sf Median_{(when \: n \: is \: odd)} = { \bigg(\cancel{\dfrac{8}{2}} \bigg)}^{th} term\)
\(\\\)
\( \sf Median_{(when \: n \: is \: odd)} ={ 4}^{th} term\)
• Putting,
4th term as 4.
\(\longrightarrow \: \sf Median_{(when \: n \: is \: odd)} = \red{ 4}\)
\(\\\)
\({\large{\textsf{\textbf{\underline{\underline{Question \: 3 :}}}}}}\)
\(\star\:{\underline{\underline{\sf{\green{Solution:}}}}}\)
The frequency distribution table for calculations of mean :
\(\begin{gathered}\begin{array}{|c|c|c|c|c|c|c|} \hline \rm x_{i} &\rm 3&\rm 1&\rm 7&\rm 4&\rm 6&\rm 2 \rm \\ \hline\rm f_{i} &\rm 4&\rm 6&\rm 2&\rm 2 & \rm 1&\rm 1 \\ \hline \rm f_{i}x_{i} &\rm 12&\rm 6&\rm 14&\rm 8&\rm 6&\rm \rm 2 \\ \hline \end{array} \\ \end{gathered} \)
☆ Calculating the \(\sum f_{i}\)
\( \implies 4 + 6 + 2 + 2 + 1 + 1\)
\( \implies 16\)
☆ Calculating the \(\sum f_{i}x_{i}\)
\( \implies 12 + 6 + 14 + 8 + 6 + 2\)
\(\implies 48\)
As we know,
Mean by direct method :
\( \: \: \boxed{\green{{ { \overline{x} \: = \sf \dfrac{ \sum \: f_{i}x_{i}}{ \sum \: f_{i}}}}}}\)
here,
• \(\sum f_{i}\) = 16
• \(\sum f_{i}x_{i}\) = 48
By putting the values we get,
\(\sf \longrightarrow \overline{x} \: = \: \dfrac{48}{16}\)
\(\sf \longrightarrow \overline{x} \: = \green{3}\)
\({\large{\textsf{\textbf{\underline{\underline{Note\: :}}}}}}\)
• Swipe to see the full answer.
\(\begin{gathered} {\underline{\rule{290pt}{3pt}}} \end{gathered}\)
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Answer: 1/2
Step-by-step explanation: Never fear the great answerer is here!
Answer:
I think it's 8 or 1/2. not completely sure.
Find the mode of the data
Answer:
9
Step-by-step explanation:
Mode: the value that occurs most frequently in a given set of data
9 has the most dots stacked up for the number of hours slept--
(in that particular data set)
Hope this made sense!