Question 1

For the following distribution,  What is the variance of the distribution?

Accepted Answer

A)  2.1 
B)  0.132 
C)  0.364 
D)  1.000

Question 2

The probability of a particular outcome must always be between 0 and 100 inclusive.

Accepted Answer

A) True 
 B)False

Question 3

David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period twenty-five customers buy gasoline at this station. What is the probability that no more than twenty pay in cash?

Accepted Answer

A)  0.0 
B)  0.1 
C)  0.9 
D)  1.0

Question 4

What must you know to develop a binomial probability distribution?

Accepted Answer

A)  Probability of success 
B)  Probability of success and the number of trials 
C)  Probability of success and the number of successes 
D)  Number of trials and the number of successes

Question 5

If $\pi$ = 1/5 and n = 100, what is the standard deviation of this binomial distribution? _______

Accepted Answer

The answer of If $\pi$ = 1/5 and n =...

Question 6

A probability distribution is a listing of the expected outcomes of an experiment and the probability of each outcome occurring. What is the sum of the probabilities? _____

Accepted Answer

The answer of A probability distribution is a listing of...

Question 7

A probability distribution is a mutually exclusive and collectively exhaustive listing of experimental outcomes that can occur by chance and their corresponding probabilities.

Accepted Answer

A) True 
 B)False

Question 8

The following is a binomial probability distribution with n = 3 and $\pi$ = 0.20.  
The variance of the distribution is

Accepted Answer

A)  1.5 
B)  3.0 
C)  0.69 
D)  0.48

Question 9

There are ten flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.05. Using the binomial probability formula, what is the probability that none are late?

Accepted Answer

The answer of There are ten flights from Minneapolis to...

Question 10

A new car was put into production. It involved many assembly tasks. Each car was inspected at the end of the assembly line and the number of defects per unit was recorded. For the first 100 cars produced, there were 40 defective cars. Some of the cars had no defects; a few had one defect, and so on. The distribution of defects followed a Poisson distribution. Based on the first 100 produced, about how many out of every 1,000 cars assembled should have one or more defects?

Accepted Answer

A)  About 660 
B)  About 165 
C)  About 630 
D)  About 330

Question 11

Chances are 50-50 that a newborn baby will be a girl. For families with five children, what is the probability that all the children are girls?

Accepted Answer

A)  0.900 
B)  0.031 
C)  0.001 
D)  0.250

Question 12

A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month.  What is the mode of the distribution?

Accepted Answer

A)  0.72 days 
B)  2.5 days 
C)  0 days 
D)  3 days

Question 13

A probability distribution shows the distribution of a ______________.

Accepted Answer

The answer of A probability distribution shows the distribution of...

Question 14

A company is studying the number of daily debit card purchases. If there were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases? ____

Accepted Answer

The answer of A company is studying the number of...

Question 15

Which one of the following is NOT a condition of the binomial distribution?

Accepted Answer

A)  Independent trials 
B)  Only two outcomes 
C)  Probability of success remains constant from trial to trial 
D)  At least 10 observations

Question 16

A binomial probability distribution approaches a greater degree of symmetry as the probability of success remains constant and the number of trials becomes ___________.

Accepted Answer

The answer of A binomial probability distribution approaches a greater...

Question 17

Data show that the weight of an offensive linesman may be any weight between 200 and 350 pounds. The distribution of weight is based on a

Accepted Answer

A)  Continuous random variable 
B)  Discrete random variable 
C)  Qualitative variable 
D)  All of the above

Question 18

Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men. What is the probability that no woman is selected?

Accepted Answer

A)  1/5 
B)  1/3 
C)  2/15 
D)  8/15

Question 19

For the following probability distribution,  The standard deviation is _____________.

Accepted Answer

The answer of For the following probability distribution,  The...

Question 20

David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period twenty-five customers buy gasoline at this station. What is the probability that more than ten and less than fifteen customers pay in cash?

Accepted Answer

A)  0.541 
B)  0.401 
C)  0.380 
D)  0.562

Exam 6: Discrete Probability Distributions

For the following distribution, What is the variance of the distribution?

The probability of a particular outcome must always be between 0 and 100 inclusive.

What must you know to develop a binomial probability distribution?

If $\pi$ = 1/5 and n = 100, what is the standard deviation of this binomial distribution? _______

A probability distribution is a listing of the expected outcomes of an experiment and the probability of each outcome occurring. What is the sum of the probabilities? _____

A probability distribution is a mutually exclusive and collectively exhaustive listing of experimental outcomes that can occur by chance and their corresponding probabilities.

The following is a binomial probability distribution with n = 3 and $\pi$ = 0.20. $The following is a binomial probability distribution with n = 3 and \pi = 0.20. The variance of the distribution is A) 1.5 B) 3.0 C) 0.69 D) 0.48$ The variance of the distribution is

There are ten flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.05. Using the binomial probability formula, what is the probability that none are late?

Chances are 50-50 that a newborn baby will be a girl. For families with five children, what is the probability that all the children are girls?

A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. What is the mode of the distribution?

A probability distribution shows the distribution of a ______________.

A company is studying the number of daily debit card purchases. If there were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases? ____

Which one of the following is NOT a condition of the binomial distribution?

A binomial probability distribution approaches a greater degree of symmetry as the probability of success remains constant and the number of trials becomes ___________.

Data show that the weight of an offensive linesman may be any weight between 200 and 350 pounds. The distribution of weight is based on a

Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men. What is the probability that no woman is selected?

For the following probability distribution, The standard deviation is _____________.

Exam 6: Discrete Probability Distributions

For the following distribution, What is the variance of the distribution?

The probability of a particular outcome must always be between 0 and 100 inclusive.

What must you know to develop a binomial probability distribution?

If π\piπ = 1/5 and n = 100, what is the standard deviation of this binomial distribution? _______

A probability distribution is a listing of the expected outcomes of an experiment and the probability of each outcome occurring. What is the sum of the probabilities? _____

A probability distribution is a mutually exclusive and collectively exhaustive listing of experimental outcomes that can occur by chance and their corresponding probabilities.

The following is a binomial probability distribution with n = 3 and π\piπ = 0.20. The variance of the distribution is

There are ten flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.05. Using the binomial probability formula, what is the probability that none are late?

Chances are 50-50 that a newborn baby will be a girl. For families with five children, what is the probability that all the children are girls?

A company is studying the number of monthly absences among its 125 employees. The following probability distribution shows the likelihood that people were absent 0, 1, 2, 3, 4, or 5 days last month. What is the mode of the distribution?

A probability distribution shows the distribution of a ______________.

A company is studying the number of daily debit card purchases. If there were 20 purchases and the probability of a debit card purchase is 0.5. What is the standard deviation of the number of debit card purchases? ____

Which one of the following is NOT a condition of the binomial distribution?

A binomial probability distribution approaches a greater degree of symmetry as the probability of success remains constant and the number of trials becomes ___________.

Data show that the weight of an offensive linesman may be any weight between 200 and 350 pounds. The distribution of weight is based on a

Affirmative action commitments by many organizations have led to an increase in the number of women in executive positions. Satellite Office Systems has vacancies for two executives that it will fill from among four women and six men. What is the probability that no woman is selected?

For the following probability distribution, The standard deviation is _____________.

If $\pi$ = 1/5 and n = 100, what is the standard deviation of this binomial distribution? _______

The following is a binomial probability distribution with n = 3 and $\pi$ = 0.20. $The following is a binomial probability distribution with n = 3 and \pi = 0.20. The variance of the distribution is A) 1.5 B) 3.0 C) 0.69 D) 0.48$ The variance of the distribution is