Question 1

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

Question 2

The mean of a binomial distribution is calculated using ____.

Accepted Answer

nπ
Explanation: By definition,

Question 3

To construct a binomial distribution, we need to know the ___________ and the probability of a success.

Accepted Answer

The answer of To construct a binomial distribution, we need...

Question 4

The mean of a probability distribution is called its expected value.

Accepted Answer

A) True 
 B)False

Question 5

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.   Given the probability distribution, which of the following predictions is correct?

Accepted Answer

A)  60% of the employees will have more than one day absent per month. 
B)  There is a 0.04 probability that an employee will be absent one day per month. 
C)  There is a 0.12 probability that an employee will be absent two days per month. 
D)  There is a 0.50 probability that an employee will be absent 0.72 days per month. 
A)  60% of the employees will have more than one day absent per month. 
B)  There is a 0.04 probability that an employee will be absent one day per month. 
C)  There is a 0.12 probability that an employee will be absent two days per month. 
D)  There is a 0.50 probability that an employee will be absent 0.72 days per month.

Question 6

For the following probability distribution:   The mean is _____________.

Accepted Answer

12
Explanation: The

Question 7

To apply a Poisson probability distribution, the mean can be computed as __________.

Accepted Answer

A)  nπ 
B)    
C)  e-x 
D)    
A)  nπ 
B)    
C)  e-x 
D)

Question 8

The binomial probability distribution is always negatively skewed.

Accepted Answer

A) True 
 B)False

Question 9

Judging from recent experience, 5% of the computer keyboards produced by an automatic, high-speed machine are defective. If six keyboards are randomly selected, what is the probability that none of the keyboards are defective?

Accepted Answer

A)  0.001 
B)  0.167 
C)  0.735 
D)  0.500 
A)  0.001 
B)  0.167 
C)  0.735 
D)  0.500

Question 10

For the hypergeometric distribution there are ________________ possible outcomes.

Accepted Answer

The answer of For the hypergeometric distribution there are ________________...

Question 11

Which of the following is NOT a characteristic of a binomial probability distribution?

Accepted Answer

A)  Each outcome is mutually exclusive. 
B)  Each trial is independent. 
C)  The probability of success remains constant from trial to trial. 
D)  The number of trials is limited to two. 
A)  Each outcome is mutually exclusive. 
B)  Each trial is independent. 
C)  The probability of success remains constant from trial to trial. 
D)  The number of trials is limited to two.

Question 12

On a very hot summer day, 5% of the production employees at Midland States Steel are absent from work. The production employees are randomly selected for a special in-depth study on absenteeism. What is the probability of randomly selecting 10 production employees on a hot summer day and finding that none of them are absent?

Accepted Answer

A)  0.002 
B)  0.344 
C)  0.599 
D)  0.100 
A)  0.002 
B)  0.344 
C)  0.599 
D)  0.100

Question 13

As a general rule of thumb, if the items selected for a sample are not replaced and the sample size is less than 5 percent of the population, the binomial distribution can be used to approximate the hypergeometric distribution.

Accepted Answer

A) True 
 B)False

Question 14

The Poisson distribution or, the law of improbable events, is _______________ skewed.

Accepted Answer

The answer of The Poisson distribution or, the law of...

Question 15

Explain the difference between the application of the binomial and the hypergeometric probability distributions.

Accepted Answer

To apply the binomial distribu

Question 16

For a binomial distribution, the mean is 0.6 and n = 2. What is π for this distribution?

Accepted Answer

A)  0.5 
B)  1.00 
C)  0.3 
D)  0.1 
A)  0.5 
B)  1.00 
C)  0.3 
D)  0.1

Question 17

What kind of distributions are the binomial and Poisson probability distributions?

Accepted Answer

A)  Discrete 
B)  Continuous 
C)  Both discrete and continuous 
D)  Neither discrete or continuous 
A)  Discrete 
B)  Continuous 
C)  Both discrete and continuous 
D)  Neither discrete or continuous

Question 18

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that exactly 1 flight is late?

Accepted Answer

0.383
Explanation: Applying the binomial

Question 19

There are 10 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 1 or more are late?

Accepted Answer

0.401
Explanation: Applying the binomial

Question 20

Which of the following is a requirement for use of the hypergeometric distribution?

Accepted Answer

A)  Only two possible outcomes 
B)  Trials are independent 
C)  Probability of a success is greater than 1.0 
D)  Sampling with replacement 
A)  Only two possible outcomes 
B)  Trials are independent 
C)  Probability of a success is greater than 1.0 
D)  Sampling with replacement

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?

The mean of a binomial distribution is calculated using ____.

To construct a binomial distribution, we need to know the ___________ and the probability of a success.

The mean of a probability distribution is called its expected value.

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. Given the probability distribution, which of the following predictions is correct?

For the following probability distribution: The mean is _____________.

To apply a Poisson probability distribution, the mean can be computed as __________.

The binomial probability distribution is always negatively skewed.

Judging from recent experience, 5% of the computer keyboards produced by an automatic, high-speed machine are defective. If six keyboards are randomly selected, what is the probability that none of the keyboards are defective?

For the hypergeometric distribution there are ________________ possible outcomes.

Which of the following is NOT a characteristic of a binomial probability distribution?

As a general rule of thumb, if the items selected for a sample are not replaced and the sample size is less than 5 percent of the population, the binomial distribution can be used to approximate the hypergeometric distribution.

The Poisson distribution or, the law of improbable events, is _______________ skewed.

Explain the difference between the application of the binomial and the hypergeometric probability distributions.

For a binomial distribution, the mean is 0.6 and n = 2. What is π for this distribution?

What kind of distributions are the binomial and Poisson probability distributions?

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that exactly 1 flight is late?

There are 10 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 1 or more are late?

Which of the following is a requirement for use of the hypergeometric distribution?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 6: Discrete Probability Distributions

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?

The mean of a binomial distribution is calculated using ____.

To construct a binomial distribution, we need to know the ___________ and the probability of a success.

The mean of a probability distribution is called its expected value.

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. Given the probability distribution, which of the following predictions is correct?

For the following probability distribution: The mean is _____________.

To apply a Poisson probability distribution, the mean can be computed as __________.

The binomial probability distribution is always negatively skewed.

Judging from recent experience, 5% of the computer keyboards produced by an automatic, high-speed machine are defective. If six keyboards are randomly selected, what is the probability that none of the keyboards are defective?

For the hypergeometric distribution there are ________________ possible outcomes.

Which of the following is NOT a characteristic of a binomial probability distribution?

As a general rule of thumb, if the items selected for a sample are not replaced and the sample size is less than 5 percent of the population, the binomial distribution can be used to approximate the hypergeometric distribution.

The Poisson distribution or, the law of improbable events, is _______________ skewed.

Explain the difference between the application of the binomial and the hypergeometric probability distributions.

For a binomial distribution, the mean is 0.6 and n = 2. What is π for this distribution?

What kind of distributions are the binomial and Poisson probability distributions?

There are eight flights from Minneapolis to St. Cloud each day. The probability that any one flight is late is 0.10. Using the binomial probability formula, what is the probability that exactly 1 flight is late?

There are 10 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 1 or more are late?

Which of the following is a requirement for use of the hypergeometric distribution?

What Is Statistics

Describing Data: Frequency Tables, Frequency Distributions, and Graphic Presentation

Describing Data: Numerical Measures

Describing Data: Displaying and Exploring Data

A Survey of Probability Concepts

Continuous Probability Distributions

Sampling Methods and the Central Limit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two-Sample Tests of Hypothesis

Analysis of Variance

Correlation and Linear Regression

Multiple Regression Analysis

Nonparametric Methods: Nominal Level Hypothesis Tests

Nonparametric Methods: Analysis of Ordinal Data

Index Numbers

Time Series and Forecasting

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters