Directions: Read each item carefully and write the correct answer in aseparate sheet of paper.1. Which of the following is a discrete random variable?A. Average weight of female athletes.B. Average amount of electricity consumed.C. Number of suspected cases of COVID-19.D. Amount of paint used in repainting a building.2. Which of the following represents a probability distribution?А.C.3.P(X) 0.350.310.22 0.12P(X)D.0.380.36 0,30 0.12В.12.426.P(X)1/6 3/6 2/61/6P(X) 1/3 4/3 2/31/33. Which of the following is the expected value of the variable x?A. MeanB. MedianC. ModeD. Variance4. If P(X)what are the possible values of X for it to be a probabilitydistribution?А. О, 2, 3В. 1, 2, 3С. 2, 3, 4D. 1, 1, 2 olicelcewness of a normal eurve?B.0CIares that corresponds to z-value, zw0.37B. O.11791D. 0.15542C. O.12172e area that corresponds to 8-value, z -0.57B. 0.12172926D. 0.19146C. 0.15542aponds to z-value, z 1.257C. 0.39447926D. 0.4115G. A randomn variable X has the following probability distribution. What is thevalue of c?234PIX)0.250.370.280.06A. 0.01B. 0.02C. 0.03D. 0.046. If two coins are tossed, which is NOTa possible value of the random variablefor the number of heads?A. OВ. 1C. 2D. 37. A researcher surveyed the households in a small town. The random variableX represents the number of college graduates in the households. Does thetable illustrate a probability distribution?1P(x)0.250.500.50A. Yes8. A coin is tossed thrice. Let the variable X represent the numbers of heads.B. NoC. MaybeD. Cannot be determinedWhat will be the values of variable X?A. 0, 1, 2, 3B. 1, 2, 3, 4C. 5, 6, 7, 8D. 1, 3, 5, 79. Mean is the expected value or the weighted average of all the values that therandom variable X would assume. What are the steps in computing the meanof a discrete random variable?I. Add the results obtained in multiplying the random variable X bythe corresponding probability.II. Construct the probability distribution for the random variable X.III. Multiply the value of the random variable X by the correspondingprobability.A. III, II, 110. In a recent little league softball game, each player went to bat 4 times. Thenumber of hits made by each player is described by the following probabilitydistribution. What is the mean of the probability distribution?Number of hits, xProbability, P(X)B, I, II, IIIC. II, III, 1D. III, I, II12340.100.200.300.250.15A. 1.00B. 1.75C. 2.00D. 2.15For numbers 11-13, refer to the problem below.Suppose three coins are tossed. Let X be the random variable representingthe number of tails that occur.11. What are the possible values of the random variable X?A. 0, 2, 4, 6B. 1, 5, 7, 9C. 0, 1, 2, 3D. 5, 6, 7, 813of the Philippines

Name: Directions: Read each item carefully and write the correct answer in
Uploaded: 2024-03-20T07:06:41.000Z
Channel: Bartleby
Description: Directions: Read each item carefully and write the correct answer in aseparate sheet of paper.1. Which of the following is a discrete random variable?A. Average weight of female athletes.B. Average amount of electricity consumed.C. Number of suspect

. Since you have asked multiple question, we will solve the first question for you. If you want any…

Math

Statistics

1. Which of the following is a discrete random variable? A. Average weight of female athletes. B. Average amount of electricity consumed. C. Number of suspected cases of COVID-19. D. Amount of paint used in repainting a building.

1. Which of the following is a discrete random variable? A. Average weight of female athletes. B. Average amount of electricity consumed. C. Number of suspected cases of COVID-19. D. Amount of paint used in repainting a building.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train.…

A: Given,Mean μ = 69Standard deviation σ = 1.1

Q: A variable is normally distributed with mean 22 and variance 36. Find each of the following areas.…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any one question So I am…

Q: 1. Identify the example below, whether the random variable is discrete or continuous: A. Total goals…

Q: 4. A loaded coin with .65 probability of tails is tossed 800 times. Find the following: a. n= b. p =…

A: Note: As per our guidelines we are supposed to answer only 3 subparts of any questions so i am…

Q: D what is the variance hr tece following setof scoms? Scones;4,17

A: From the provided information, The scores are as follow: 4, 1, 7

Q: Use the table in this document to record the frequency of each color. Then, compute the relative…

A: Given: n = 57 Formula Used: Relative frequency = Fn

Q: 3. The area of lots in an exclusive subdivision 4. The number of recovered patients of COVID-19 per…

A: The objective of the question is to determine the values of the random variables in different…

Q: 5. A manufacturer of digital recorders claims the distribution of life of its recorders can be…

A: Let X1,X2,....,X64 be the samples from this population. Sample mean, X = 164∑i=164Xi Xi are normally…

Q: 5. The average American adult eats an average of 8.5 gallons of ice cream per year. Assume the…

A: Solution: Let X be the amount of ice cream eaten is normally distributed with mean μ=8.5 and…

Q: 3. Find the probabilities associated with the standard normal distribution (You will also draw the…

A: 3. a. The probability associated with PZ≥0.23 is, PZ≥0.23=1-PZ<0.23 The probability of z less…

Q: a. Let the random variable ? be the number of chips per biscuit. Identify the distribution of ? and…

A: As per our guidelines, we are allowed to answer three sub-parts Here it is given : a) The mean…

Q: f z

A: As, z is a standard number variable, so Mean (μ) = 0 Standard Deviation (σ) = 1 So, Z = z-01~N(0,1)

Q: An automated machine in a manufacturing process is operating properly if the length of animportant…

Q: 2. Which of the following are practical ways to assess normality of the residuals? Select all that…

A: Normal Probability Plot:A normal probability plot is a graphical technique for checking whether or…

Q: 2. A plastic casting for a magnetic disk is composed of three parts, A, B, and C. The thickness of…

A: Three parts : A,B,C Thickness of each part is normally distributed with a mean of 2 mm Standard…

Q: The mean gas mileage for a hybrid car is 57 miles per gallon. Suppose that the gasoline mileage is…

A: Mean()=57standard deviation()=3.5

Concept explainers

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.

Topic Video

Question

Directions: Read each item carefully and write the correct answer in a
separate sheet of paper.
1. Which of the following is a discrete random variable?
A. Average weight of female athletes.
B. Average amount of electricity consumed.
C. Number of suspected cases of COVID-19.
D. Amount of paint used in repainting a building.
2. Which of the following represents a probability distribution?
А.
C.
3.
P(X) 0.35
0.31
0.22 0.12
P(X)
D.
0.38
0.36 0,30 0.12
В.
1
2.
4
2
6.
P(X)
1/6 3/6 2/6
1/6
P(X) 1/3 4/3 2/3
1/3
3. Which of the following is the expected value of the variable x?
A. Mean
B. Median
C. Mode
D. Variance
4. If P(X)
what are the possible values of X for it to be a probability
distribution?
А. О, 2, 3
В. 1, 2, 3
С. 2, 3, 4
D. 1, 1, 2

olic
elcewness of a normal eurve?
B.0
CI
ares that corresponds to z-value, zw0.37
B. O.11791
D. 0.15542
C. O.12172
e area that corresponds to 8-value, z -0.57
B. 0.12172
926
D. 0.19146
C. 0.15542
aponds to z-value, z 1.257
C. 0.3944
7926
D. 0.4115
G. A randomn variable X has the following probability distribution. What is the
value of c?
2
3
4
PIX)
0.25
0.37
0.28
0.06
A. 0.01
B. 0.02
C. 0.03
D. 0.04
6. If two coins are tossed, which is NOTa possible value of the random variable
for the number of heads?
A. O
В. 1
C. 2
D. 3
7. A researcher surveyed the households in a small town. The random variable
X represents the number of college graduates in the households. Does the
table illustrate a probability distribution?
1
P(x)
0.25
0.50
0.50
A. Yes
8. A coin is tossed thrice. Let the variable X represent the numbers of heads.
B. No
C. Maybe
D. Cannot be determined
What will be the values of variable X?
A. 0, 1, 2, 3
B. 1, 2, 3, 4
C. 5, 6, 7, 8
D. 1, 3, 5, 7
9. Mean is the expected value or the weighted average of all the values that the
random variable X would assume. What are the steps in computing the mean
of a discrete random variable?
I. Add the results obtained in multiplying the random variable X by
the corresponding probability.
II. Construct the probability distribution for the random variable X.
III. Multiply the value of the random variable X by the corresponding
probability.
A. III, II, 1
10. In a recent little league softball game, each player went to bat 4 times. The
number of hits made by each player is described by the following probability
distribution. What is the mean of the probability distribution?
Number of hits, x
Probability, P(X)
B, I, II, III
C. II, III, 1
D. III, I, II
1
2
3
4
0.10
0.20
0.30
0.25
0.15
A. 1.00
B. 1.75
C. 2.00
D. 2.15
For numbers 11-13, refer to the problem below.
Suppose three coins are tossed. Let X be the random variable representing
the number of tails that occur.
11. What are the possible values of the random variable X?
A. 0, 2, 4, 6
B. 1, 5, 7, 9
C. 0, 1, 2, 3
D. 5, 6, 7, 8
13
of the Philippines

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Discrete Probability Distributions$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

Answer the following questions. 1. The amount of rainfall in California in 2021 is A) A discrete random variable B) A continuous random variable C) Not a random variable 2. The amount of rainfall in California in 2019 is A. A discrete random variable B. A continuous random variable C. Not a random variable 3. The number of tesla cars sold in 2020 in the us is A. A discrete random variable B. A continuous random variable C. Not a random variable 4. The most popular car maker (i.e., the car maker that sold the most cars) in the us in 2021 is A. A discrete random variable B. A continuous random variable C. Not a random variable
1
Completed 0 of 4 Questions ( 1 4 > O Save V Finish 2 3 Yoonie is a personnel manager in a large corporation. Each month she must review 25 of the employees. From past experience, she has found that the reviews take her approximately 2 hours each to do with a population standard deviation of 1.2 hours. Let X be the random variable representing the time it takes her to complete one review. Assume X is normally distributed. Let X be the random variable representing the mean time to complete the 25 reviews. Assume that the 25 reviews represent a random set of reviews. a. X is normally distributed with a mean of and a standard deviation of 2 1.2 and a standard error of the mean Round your answer to 2 decimal places. b. X is normally distributed with a mean of Enter a number Enter a number Submit (2 attempts remaining) Us O 9I 11
The weight of items produced by a machine is normally distributed with a mean of 8 ounces and a standard deviation of 2 ounces.Refer to Exhibit 6-5. What is the random variable in this experiment? a. 8 ounces b. Weight of items produced by a machine c. Normal distribution d. 2 ounces
Indrilling a vertical wellbore, the spacing between major fractures are recorded. It has been found that this spacing is having a mean of 180o ft and a variance of 3,240,000 ft In the first 2000 ft drilling, there was no present of major fracture in the well. Determine the probability that there is a major fracture at the depth of 2000-3500 ft. Select one: a.0.57 b.o.43 C. O.19 do 82