The PMF for the number of a randomly selected contestant in a talent TV show with n contestants can be expressed as PMF(x) = 1/n.
To determine the probability mass function (PMF) of a randomly selected contestant, we need to consider the number of contestants, n. Assuming that all contestants have an equal chance of being selected, the PMF of the randomly selected contestant can be defined as follows:
PMF(x) = 1/n
Here, x represents the number of the selected contestant, and n represents the total number of contestants.
The PMF describes the probability distribution of a discrete random variable. In this case, the random variable x represents the number of the selected contestant.
Since all contestants have an equal chance of being selected, the probability of selecting any specific contestant is 1/n. This is because there are n contestants in total, and the probability of selecting any one contestant out of the n contestants is 1/n.
Therefore, for each possible value of x (contestant number), the probability of selecting that specific contestant is 1/n.
It's important to note that this assumes that the selection process is fair and unbiased, and each contestant has an equal chance of being called to the stage. If there are any biases or variations in the selection process, the PMF may differ accordingly.
Learn more about function here:
https://brainly.com/question/30721594
#SPJ11
Maria orders 8 pizzas for 24 people coming to her party.
a) How many people can be fed
b) How many pizzas would she need if 33 people come to the party.
Using the arithmetic operation of division -
a) 3 people can be fed by 1 pizza.
b) Maria would need 11 pizzas for 33 people.
What is arithmetic operation?
A subject of mathematics known as arithmetic operations deals with the study and use of numbers in all other branches of mathematics. Basic operations including addition, subtraction, multiplication, and division are included.
The number of pizzas ordered = 8
The number of people are = 24.
Number of people that can be fed if 1 pizza was there =
Number of people = Number of people that came/ Number of pizza
Use the arithmetic operation of division -
Number of people = 24/8
Number of people = 3
Therefore, 3 people can be fed.
Now, the number of people = 33
Number of pizzas required for 33 people can be obtained as -
Use the arithmetic operation of division -
Number of pizzas = Number of people/ Number of people fed by 1 pizza
Number of pizzas = 33/3
Number of pizzas = 11
Therefore, Maria will require 11 pizzas.
To learn more about arithmetic operation from the given link
https://brainly.com/question/20628271
#SPJ1
Find the measure of each angle
Answer:
m∠QRT = 47°
m∠TRS = 133°
Step-by-step explanation:
Because points Q, R, and S are collinear, ∠QRT and ∠TRS are supplementary. This means that:
m∠QRT + m∠TRS = 180°
Plug-in the known values and simplify:
3x + 5 + 10x - 7 = 180
13x - 2 = 180
13x = 182
x = 14
Now that you have the value of x, plug them into the values of the angles:
m∠QRT = 3x+ 5
= 3(14) + 5
= 42 + 5
= 47°
m∠TRS = 10x - 7
= 10(14) - 7
= 140 - 7
= 133°
To double-check:
133° + 47° = 180° ☺
help me…….. z z. s z z z z z z z. z z z z z z z z z
Answer:
The 2nd answer is the correct answer
Step-by-step explanation:
Hope this helps:)
Helphelphelp will mark brainliest
I need some help ? Does anyone know this:)I’m new too this thats why im asking loll
Answer: Its the second choice
Step-by-step explanation: square area is base x height; the base is 12 the height is 4. triangle area = (base x height)/ 2; base is 12, times 4 (height), then divide by 2
\(m6 + 64n6\)
What is the range of the function shown in the graph?
у
A
8
6
4
2
-8
f
- 2
X
4
6
8
-2
-4
-64
-8-1
Answer:
A
Step-by-step explanation:
The range of the given function from the given graph are: all values of y that are greater than or equal to -3. Therefore, the correct option is option D.
What is range of function?It is seen to be best practice to define the word "range" the first time it appears in a book or article because it might have several different meanings. When the word "range" is used in older literature, it frequently refers to what is today known as the codomain.
If more recent texts use the phrase "range" at all, they typically do so to refer to what is now known as the image. Several contemporary novels shouldn't use the term "range" at all to avoid any misunderstandings.
A function's range is the set of each of its potential outputs1,2,3,4. That's the output that the function generates when all of its inputs are used3,5. The range of the given function from the given graph are: all values of y that are greater than or equal to -3.
Therefore, the correct option is option D.
To know more about range of function, here:
https://brainly.com/question/29051369
#SPJ7
Your question is incomplete but most probably your full question was,
What is the range of the function shown in the graph?
How do I do this? I’m completely lost!!!
Answer:
f(5)=5²-2(5)
=25-10
=15
replace the x with five
(10+12x)(15x+1) please help me
Write the perfect root less than and the perfect root greater than the root given. What is the value of the perfect roots?
From the given picture, we can note that
\(3=\sqrt[]{9}<\sqrt[]{12}<\sqrt[]{25}=5\)Similarly,
\(10=\sqrt[]{100}<\sqrt[]{193}<\sqrt[]{144}=12\)In the same way, we have
\(7=\sqrt[]{49}<\sqrt[]{50}<\sqrt[]{121}=11\)and finally,
\(9=\sqrt[]{81}<\sqrt[]{93}<\sqrt[]{100}=10\)This is a variation on the Fibonacci sequence. Suppose a newborn pair of rabbits, one male and one female, are put in a field. But now, rabbits are not able to mate until age two months so that at the end of its third month of life, a female can give birth. Suppose that our rabbits never die. Also suppose that the female always produces three new pairs of male/female rabbits at the beginning of every month from the third month on. Let me be the number of rabbit pairs alive at the end of month n where n > 1, and let So = 1. a. Interpret So = 1 in context. b. Compute So, S1, S2, S3, S4, and Ss. C. Find recurrence relation for the sequence So, S1, S2, ... d. How many rabbits (not pairs of rabbits... but rabbits) will there be at the end of the year?
The start = 1 is the number of rabbit pairings after one month. Each female rabbit births three pairs of rabbits starting in the third month. We can count rabbit pairs at month's end by analysing the trend. After a year, we can count all rabbits, male and female.
a. The initial condition So = 1 represents the number of rabbit pairs alive at the end of the first month. This means that initially, there is one pair of rabbits in the field.
b. To compute the number of rabbit pairs at the end of each month, we follow the given rules. After the first month, the pair of rabbits is still too young to reproduce, so S1 remains 1. In the second month, they still cannot reproduce, so S2 remains 1 as well. However, at the end of the third month, the female rabbit can give birth, resulting in three new pairs of rabbits. Therefore, S3 becomes 1 (initial pair) + 3 (new pairs) = 4. In the fourth month, each of the four female rabbits can give birth, resulting in 3 * 4 = 12 new pairs. So, S4 becomes 4 (existing pairs) + 12 (new pairs) = 16. Following this pattern, we can calculate S5, S6, and so on.
c. We can observe a recurrence relation in the sequence: Sn = Sn-1 + 3 * Sn-3, where n > 3. This relation states that the number of pairs at the end of the nth month is equal to the number of pairs at the end of the previous month (Sn-1) plus three times the number of pairs three months ago (Sn-3).
d. To find the total number of rabbits at the end of the year, we sum up the number of rabbit pairs for each month from the 1st to the 12th month. At the end of the 12th month, we can calculate the total number of rabbits by multiplying the number of pairs by 2 (to account for both male and female rabbits in each pair).
Learn more about recurrence relation here:
https://brainly.com/question/30895268
#SPJ11
2y to the power of 4 x 5y to the power of 3
Answer:
(2•5y to the 7th power)
Step-by-step explanation:
Step 1: (2y to the 4th power • 5) • y to the 3rd power
Step 2: (2•5y to the 4th power) • y to the 3rd power
Step 3: 3.1 y to the 4th power multiplied by y to the 3rd power = y to the (4 + 3) power = y to the 7th power
Final answer: (2•5y to the 7th power)
The expression \(2y^{4} * 5y^{3}\) is equal to 10\(y^{7}\).
What is Multiplying Exponents?When two expressions with exponents are multiplied, it is called multiplying exponents. The multiplication of exponents involves certain rules depending upon the base and the power.
What is multiplication of exponents with same base and different power?When the terms with the same base are multiplied, the powers are added, i.e., \(a^{m}\) × \(a^{n}\) = \(a^{{m+n}}\)
According to the question
\(2y^{4} * 5y^{3}\)
Now,
Using the multiplying exponent rule :
the terms with the same base are multiplied, the powers are added, i.e., \(a^{m}\) × \(a^{n}\) = \(a^{{m+n}}\)
Therefore,
As, base y is common in both the terms
= 10\(y^{4+3}\)
= 10\(y^{7}\)
Hence, the expression \(2y^{4} * 5y^{3}\) is equal to 10\(y^{7}\).
To know more about multiplying exponent here:
https://brainly.com/question/219134
#SPJ3
The radius of a circle is 3 units.
What is the diameter of the circle?
Answer:
6
Step-by-step explanation:
diameter = 2 radius
3*2 = 6
Answer:
6
Step-by-step explanation:
r = d/2 Multiply both sides by 2
2*r = d
r = 3
2*3 = d
d = 6
n < -4
need answers fast math test to at 11:59 pm today but gotta get done faster than that.
plz. and thank you!!
Answer:
N would equal anything lower than -4 for example, -5 or -6
Step-by-step explanation:
yw
Which graph represents f(x) =3(2)^x
Answer:
C
Step-by-step explanation:
what factor is equivalent to -3/2
Multiplying the numerator and the denominator by the same constant, we get an equivalent fraction, as follows:
\(-\frac{3}{2}=-\frac{3}{2}\cdot\frac{2}{2}=-\frac{3\cdot2}{2\cdot2}=-\frac{6}{4}\)Then, -6/4 is equivalent to -3/2
the radius of the circular base of a cone is (3x-2)m. if its slant height is (9x^2 - 6x)m, express the cone’s surface area as factored polynomial in x.
NOTE: SA= πrs+πr^2
Answer:
SA= 289.56 m^2
Step-by-step explanation:
Can someone answer this for me?
solve the equation c2 = 43
Hi there!
»»————- ★ ————-««
I believe your answer is:
\(c = \pm\sqrt{43}\)
»»————- ★ ————-««
Here’s why:
I am assuming that the two is an exponent.
⸻⸻⸻⸻
\(\boxed{\text{Solving for 'c'...}}\\\\c^2 = 43\\----------------\\\rightarrow \sqrt{c^2} = \sqrt{43}\\\\\rightarrow \boxed{c = \pm\sqrt{43}}}\)
⸻⸻⸻⸻
»»————- ★ ————-««
Hope this helps you. I apologize if it’s incorrect.
? what quantitative rule may be used to determine univariate outliers, and are there situations in which deleting a case/participant may be justified?
The Interquartile Range (IQR) rule is a commonly used quantitative rule to determine univariate outliers and deleting a case may be justified if it is a result of a measurement error, data entry error, or if it significantly skews the results.
The Interquartile Range (IQR) rule is a commonly used method for identifying outliers in a univariate data set. It is calculated as the difference between the 75th percentile (Q3) and the 25th percentile (Q1). Outliers are considered to be any values that fall outside of the range Q1 - 1.5 * IQR to Q3 + 1.5 * IQR. This range encompasses approximately 75% of the data, with outliers being any values that fall outside of this range.
In some cases, deleting a case or participant may be justified if it is a result of a measurement error, data entry error, or if it significantly skews the results.
This decision should be made carefully and only after careful consideration of the implications, as removing data can affect the validity of the results and the conclusions that can be drawn from the analysis. In some cases, it may be better to keep the outlier and consider it a potential error or to conduct further analysis to determine if there is a valid reason for the outlier.
To learn more about quantitative, visit:
https://brainly.com/question/14810759#
#SPJ11
find the standard form of the equation of the ellipse with the given characteristics. center: (1, 8); a = 2c; vertices: (1, 0), (1, 16)
To find the standard form of the equation of an ellipse, we need to know the center, the lengths of the major and minor axes, and the orientation of the ellipse.
Given that the center is (1, 8) and the vertices are (1, 0) and (1, 16), we can see that the major axis is vertical and has a length of 16 (since the distance between the vertices is the length of the major axis). Therefore, the length of the minor axis is 2c = 8 (where c is the distance from the center to one of the foci).
To find c, we can use the relationship a^2 = b^2 + c^2, where a is half the length of the major axis (8 in this case) and b is half the length of the minor axis (4 in this case).
a^2 = b^2 + c^2
8^2 = 4^2 + c^2
c^2 = 48
c = sqrt(48) = 4sqrt(3)
Now we have all the information we need to write the standard form of the equation of the ellipse. Since the major axis is vertical, we have the equation:
(x - h)^2 / b^2 + (y - k)^2 / a^2 = 1
where (h, k) is the center of the ellipse, a is half the length of the major axis (8 in this case), and b is half the length of the minor axis (4 in this case).
Plugging in the values, we get:
(x - 1)^2 / (4^2) + (y - 8)^2 / (8^2) = 1
Simplifying, we get:
(x - 1)^2 / 16 + (y - 8)^2 / 64 = 1
Therefore, the standard form of the equation of the ellipse is:
(x - 1)^2 / 16 + (y - 8)^2 / 64 = 1.
Given the center (h, k) = (1, 8), vertices (1, 0) and (1, 16), and the relation a = 2c, we can determine the standard form of the ellipse equation.
From the vertices, we can see that the ellipse is vertically oriented. The distance between the center and a vertex is the major radius "a." Therefore, a = 8 (half of the distance between the vertices).
Since a = 2c, we can solve for c:
c = a / 2 = 8 / 2 = 4.
Now, we can find the minor radius "b" using the relationship a² = b² + c²:
64 = b² + 16
b² = 48
Finally, the standard form of the ellipse equation is:
((x - h)² / b²) + ((y - k)² / a²) = 1
Substitute the values of h, k, a, and b:
((x - 1)² / 48) + ((y - 8)² / 64) = 1
Visit here to learn more about ellipse brainly.com/question/19507943
#SPJ11
which of the following pairs of variables has an inverse relationship?
The pair of variables with an inverse relationship is y = 1/x. This relationship can be seen by graphing the two variables on a coordinate plane and observing the shape of the graph.
As x increases, y decreases and as x decreases, y increases. This is because the equation y = 1/x can be written as y = c/x, where c is a constant. Since c is a constant, as the value of x increases, the value of y decreases, and vice versa.
For example, if x = 4, then y = 1/4, or 0.25. If x increases to 8, then y decreases to 1/8, or 0.125. On the other hand, if x decreases to 2, then y increases to 1/2, or 0.5. As can be seen, as x increases, y decreases, and as x decreases, y increases, which shows the inverse relationship between the two variables.
Learn more about variables here:
https://brainly.com/question/16937826
#SPJ4
The standard form of an absolute value function is f(x)-a|x-h|+k. Which of the following represents the vertex?
(-k.h)
(-h.k)
(k,b)
(h,k)
Answer:
(h, k )
Step-by-step explanation:
given the standard form of an absolute function
f(x) = a| x - h | + k , then
vertex = (h, k )
The standard form of an absolute value function is f(x) = a|x - h| + k, where (h,k) is the vertex of the absolute value function.
The correct option is (h,k).
What is a function?The term "function" refers to a relationship between a set of inputs and outputs. Just one output is connected to each input in a function, which connects inputs in that manner. Every function has a domain, co-domain, and range.
In general, the standard form of an absolute value function is given as:
f(x) = a |x - h| + k
where:
a is a non-negative constant that determines the shape and direction of the V-shaped graph of the absolute value function
h is the horizontal shift of the graph of the function from the origin (if h > 0, the graph shifts to the right; if h < 0, the graph shifts to the left)
k is the vertical shift of the graph of the function from the origin (if k > 0, the graph shifts up; if k < 0, the graph shifts down)
The vertex of the absolute value function is the point where the graph changes direction, that is, the point where the graph changes from sloping downwards to sloping upwards or vice versa.
Since the vertex is the point of the absolute value function where the graph changes direction, it lies at the center of the V-shaped graph. Thus, the vertex is located at the point (h,k).
Therefore, in the standard form f(x) = a |x - h| + k, (h,k) represents the coordinates of the vertex of the absolute value function.
To learn more about the function;
brainly.com/question/28303908
#SPJ7
Numbers that are divisible by 2 4 6 8 and 10 have to be?
Answer:
Even
Step-by-step explanation:
3. Consider the following system: →0.85→0.85→ Determine the probability that the system will operate under each of these conditions: a. The system as shown. (Do not round your intermediate calculations. Round your final answer to 4 decimal places.) b. Each system component has a backup with a probability of .85 and a switch that is 100 percent reliable. (Do not round your intermediate calculations. Round your final answer to 4 decimal places. c. Each system component has a backup with a probability of .85 and a switch that is 90 percent reliable. (Do not round your intermediate calculations. Round your final answer to 4 decimal places.)
a. The probability that the system will operate as shown is approximately 0.6141.
b. Probability ≈ 0.6141The probability remains the same as in the previous case, which is approximately 0.6141.
c. The probability that the system will operate with each component having a backup with a probability of 0.85 and a switch that is 90% reliable is approximately 0.6485.
a. To find the probability that the system will operate as shown, we multiply the probabilities of each component. Since the system is shown to have three components with a probability of 0.85 each, we can calculate:
Probability = 0.85 × 0.85 × 0.85
Probability ≈ 0.6141
The probability that the system will operate as shown is approximately 0.6141.
b. In this case, each system component has a backup with a probability of 0.85 and a switch that is 100% reliable. Since the backup has a probability of 0.85, and the switch is 100% reliable (probability = 1), we can calculate the probability as:
Probability = 0.85 × 0.85 × 0.85
Probability ≈ 0.6141The probability remains the same as in the previous case, which is approximately 0.6141.
c. In this scenario, each system component has a backup with a probability of 0.85, but the switch is 90% reliable (probability = 0.90). We can calculate the probability as:
Probability = 0.85 × 0.90 × 0.85
Probability ≈ 0.6485
The probability that the system will operate with each component having a backup with a probability of 0.85 and a switch that is 90% reliable is approximately 0.6485.
For more such questions on Probability
https://brainly.com/question/30390037
#SPJ8
A worker in a silver mine descends 43 feet. Use an integer to represent the change in the worker's position. The integer that represents the change in the worker's position is -5 nothing
The integer that represents the change in the worker's position is -43, indicating a downward movement of 43 feet.
The worker in the silver mine descended 43 feet, and the change in the worker's position can be represented by the integer -43.
When we use integers to represent positions, negative values indicate downward movement. In this case, the negative value -43 indicates that the worker moved downwards by 43 feet.
To better understand this concept, let's consider a number line. Imagine that the starting position is 0, and moving to the right represents going upwards while moving to the left represents going downwards.
If the worker descends 43 feet, they would move to the left on the number line by 43 units. This can be represented as -43.
It's important to note that in the context of this question, the worker's change in position is represented by a negative value because they moved downwards.
In summary, the integer that represents the change in the worker's position is -43, indicating a downward movement of 43 feet.
To know more about integer visit:
https://brainly.com/question/33503847
#SPJ11
explain the ideas (natrual rights,role of the government) and the complaints set forth in the declaration of independence
Answer:
1. Fact that all individuals are created equal and are endowed by their creator with certain unalienable rights is a clear statement in the Declaration of Independence.
2. Aim of having a government is to safeguard these rights, the people have the right and the duty to alter, abolish, or over through that government.
3. The Decoration of Independence lists the grievances that the government has failed to resolve and reconcile with the colonies.
4. The decree was made to become an autonomous nation and the motives for asserting independence are listed in the grievances.
What is the image of (9, 3) after a dilation by a scale factor of 3 centered at the origin?
Answer:
(27, 9)
Step-by-step explanation:
Hope that helps!
Answer:(27, 9)
Step-by-step explanation:
I need help with this 2
The exact volume of the cylinder is 1,846.32 cubic inches
The exact volume of the cone is 615.44 cubic inches The approximate volume of the cone to the nearest tenth is 615.4 cubic inches What is the volume of the cylinder and cone?Cylinder:
Radius, r = 7 in
Height, h = 12 in
Cone:
Radius, r = 7 in
Height, h = 12 in
Volume of a cylinder = πr²h
= 3.14 × 7² × 12
= 3.14 × 49 × 12
= 1,846.32 cubic inches
Volume of a cone = 1/3πr²h
= 1/3 × 3.14 × 7² × 12
= 1/3 × 3.14 × 49 × 12
= 1,846.32/3
= 615.44 cubic inches
Hence, the approximate volume of the cone to the nearest tenth is 615.4 cubic inches
Read more on volume of a cone:
https://brainly.com/question/1082469
#SPJ1
Charlie wants to solve the equation -1/4(x-1) =2/3 x +2. Which step would not be an appropriate first step for Charlie to take to solve for x?
In the linear equation -1/4(x -1) = 2/3x + 2, the value of x is -21/11
Linear EquationsA linear equation is an algebraic equation where each term has an exponent of 1 and when this equation is graphed, it always results in a straight line.
A linear equation is an equation in which the highest power of the variable is always 1. It is also known as a one-degree equation. The standard form of a linear equation in one variable is of the form Ax + B = 0. Here, x is a variable, A is a coefficient and B is constant. The standard form of a linear equation in two variables is of the form Ax + By = C. Here, x and y are variables, A and B are coefficients and C is a constant.
In the given equation -1/4(x -1) = 2/3x + 2, we can solve for the value of x
-1/4(x -1) = 2/3x + 2
collect like terms
-1/4x + 1/4 = 2/3x + 2
2/3x + 1/4x = 1/4 - 2
(11/12)x = - 7/4
x = - 21 / 11
The value of x is -21/11
Learn more on linear equation here;
https://brainly.com/question/4074386
#SPJ1