Question 1

A listing of all possible outcomes of an experiment and their corresponding probability of occurrence is called a ____________.

Accepted Answer

A)  Random variable 
B)  Probability distribution 
C)  Subjective probability 
D)  Frequency distribution 
A)  Random variable 
B)  Probability distribution 
C)  Subjective probability 
D)  Frequency distribution

Question 2

The binomial probability distribution is always negatively skewed.

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

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

Question 4

When sampling is done without replacement and the outcomes are measured as either a success or failure, the hypergeometric distribution should be applied.

Accepted Answer

A) True 
 B)False

Question 5

In a Poisson distribution the variance is equal to

Accepted Answer

A)  n$\pi$ 
B)    
C)  e-x 
D)    
A)  n$\pi$ 
B)    
C)  e-x 
D)

Question 6

The variance shows the skewness of a probability distribution.

Accepted Answer

A) True 
 B)False

Question 7

In the _______________________ distribution, the probability of a success is not the same on each trail.

Accepted Answer

The answer of In the _______________________ distribution, the probability of...

Question 8

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the standard deviation of the number of people served in an hour?

Accepted Answer

5.48 peopl

Question 9

A continuous random variable can assume one of an ____________ number of values within a specific range.

Accepted Answer

The answer of A continuous random variable can assume one...

Question 10

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the probability that 20 people check out in any given hour?

Accepted Answer

The answer of When observing a check-out line at a...

Question 11

How is the mean of a Poisson distribution calculated? ________

Accepted Answer

It is give

Question 12

What is the only variable in the Poisson probability formula?

Accepted Answer

A) $\pi$ 
B)  x 
C)  e 
D)  P 
A) $\pi$ 
B)  x 
C)  e 
D)  P

Question 13

The mean of a binomial distribution is the product of n and $\pi$.

Accepted Answer

A) True 
 B)False

Question 14

If n = 900 and $\pi$ = ?, what is the variance of this binomial distribution? ________

Accepted Answer

The answer of If n = 900 and $\pi$ =...

Question 15

A farmer who grows genetically engineered corn is experiencing trouble with corn borers. A random check of 5,000 ears revealed the following: many of the ears contained no borers. Some ears had one borer; a few had two borers; and so on. The distribution of the number of borers per ear approximated the Poisson distribution. The farmer counted 3,500 borers in the 5,000 ears. What is the probability that an ear of corn selected at random will contain no borers?

Accepted Answer

A)  0.3476 
B)  0.4966 
C)  1.000 
D)  0.0631 
A)  0.3476 
B)  0.4966 
C)  1.000 
D)  0.0631

Question 16

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 17

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 probability distribution should be applied? ___________

Accepted Answer

The answer of Affirmative action commitments by many organizations have...

Question 18

A manufacturer of headache medicine claims it is 70 percent effective within a few minutes. That is, out of every 100 users 70 get relief within a few minutes. A group of 12 patients are given the medicine. If the claim is true, what is the probability that 8 have relief within a few minutes?

Accepted Answer

A)  0.001 
B)  0.168 
C)  0.667 
D)  0.231 
A)  0.001 
B)  0.168 
C)  0.667 
D)  0.231

Question 19

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 none are late?

Accepted Answer

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

Question 20

A true-false test consists of six questions. If you guess the answer to each question, what is the probability of getting all six questions correct?

Accepted Answer

A)  0 
B)  0.016 
C)  0.062 
D)  0.250 
A)  0 
B)  0.016 
C)  0.062 
D)  0.250

A listing of all possible outcomes of an experiment and their corresponding probability of occurrence is called a ____________.

The binomial probability distribution is always negatively skewed.

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

When sampling is done without replacement and the outcomes are measured as either a success or failure, the hypergeometric distribution should be applied.

In a Poisson distribution the variance is equal to

The variance shows the skewness of a probability distribution.

In the _______________________ distribution, the probability of a success is not the same on each trail.

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the standard deviation of the number of people served in an hour?

A continuous random variable can assume one of an ____________ number of values within a specific range.

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the probability that 20 people check out in any given hour?

How is the mean of a Poisson distribution calculated? ________

What is the only variable in the Poisson probability formula?

The mean of a binomial distribution is the product of n and $\pi$ .

If n = 900 and $\pi$ = ?, what is the variance of this binomial 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.

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 probability distribution should be applied? ___________

A manufacturer of headache medicine claims it is 70 percent effective within a few minutes. That is, out of every 100 users 70 get relief within a few minutes. A group of 12 patients are given the medicine. If the claim is true, what is the probability that 8 have relief within a few minutes?

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 none are late?

A true-false test consists of six questions. If you guess the answer to each question, what is the probability of getting all six questions correct?

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

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

Exam 6: Discrete Probability Distributions

A listing of all possible outcomes of an experiment and their corresponding probability of occurrence is called a ____________.

The binomial probability distribution is always negatively skewed.

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

When sampling is done without replacement and the outcomes are measured as either a success or failure, the hypergeometric distribution should be applied.

In a Poisson distribution the variance is equal to

The variance shows the skewness of a probability distribution.

In the _______________________ distribution, the probability of a success is not the same on each trail.

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the standard deviation of the number of people served in an hour?

A continuous random variable can assume one of an ____________ number of values within a specific range.

When observing a check-out line at a food store, the average number of people served is 30 per hour. Using the Poisson distribution, what is the probability that 20 people check out in any given hour?

How is the mean of a Poisson distribution calculated? ________

What is the only variable in the Poisson probability formula?

The mean of a binomial distribution is the product of n and π\piπ .

If n = 900 and π\piπ = ?, what is the variance of this binomial 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.

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 probability distribution should be applied? ___________

A manufacturer of headache medicine claims it is 70 percent effective within a few minutes. That is, out of every 100 users 70 get relief within a few minutes. A group of 12 patients are given the medicine. If the claim is true, what is the probability that 8 have relief within a few minutes?

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 none are late?

A true-false test consists of six questions. If you guess the answer to each question, what is the probability of getting all six questions correct?

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

Index Numbers

Time Series and Forecasting

Nonparametric Methods: Goodness-Of-Fit Tests

Nonparametric Methods: Analysis of Ranked Data

Statistical Process Control and Quality Management

An Introduction to Decision Theory

Filters

The mean of a binomial distribution is the product of n and $\pi$ .

If n = 900 and $\pi$ = ?, what is the variance of this binomial distribution? ________