Question 1

The hypergeometric distribution is similar to the binomial distribution in that successive trials are considered to be independent of one another.

Accepted Answer

A) True 
 B)False

Question 2

Egyptian
Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: $$\begin{array} { l | c c c c c } 
x & 1 & 2 & 3 & 4 & 5 \
\hline p ( x ) & 0.25 & 0.33 & 0.17 & 0.15 & 0.10
\end{array}$$
-Find the standard deviation of the number of children in an Egyptian household.

Accepted Answer

The answer of Egyptian
Let x represent the number of children...

Question 3

The Poisson random variable is a:

Accepted Answer

A)  discrete random variable with infinitely many possible values. 
B)  discrete random variable with finite number of possible values. 
C)  continuous random variable with infinitely many possible values. 
D)  continuous random variable with finite number of possible values. 
A)  discrete random variable with infinitely many possible values. 
B)  discrete random variable with finite number of possible values. 
C)  continuous random variable with infinitely many possible values. 
D)  continuous random variable with finite number of possible values.

Question 4

In an intermediate level economics class there are 18 students.Nine of these are economics majors.For class discussion purposes three students are randomly selected.What is the probability that at least one is an economics major?

Accepted Answer

The answer of In an intermediate level economics class there...

Question 5

Phone calls arrive at the rate of 30 per hour at the reservation desk for a hotel.
A)Find the probability of receiving three calls in a five-minute interval of time.
B)Find the probability of receiving exactly seven calls in 15 minutes.
C)If no calls are currently being processed, what is the probability that the desk employee can take ten minutes break without being interrupted?

Accepted Answer

a.0.2138
b

Question 6

Let x be a Poisson random variable with $\lambda$ = 6.Use the table of Poisson probabilities to find:
A)P(x ≤ 8)
B)P(x = 8)
C)P(x ≥ 5)
D)P(6 ≤ x ≤ 10)

Accepted Answer

a.0.8472
b

Question 7

One characteristic of a discrete probability distribution is that the sum of the probabilities for all the possible values for x must be between 0 and 1.

Accepted Answer

A) True 
 B)False

Question 8

What is the expected number of canoes that will capsize?

Accepted Answer

The answer of What is the expected number of canoes...

Question 9

Poisson Distribution
One half of one percent of the checks received by an oil company are returned due to insufficient funds.Yesterday 500 checks were received in the mail.Let x equal the number of these checks which will be returned due to insufficient funds.
-Use the Poisson distribution to compute the binomial probability that none of the checks are returned.

Accepted Answer

The answer of Poisson Distribution
One half of one percent of...

Question 10

Egyptian
Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: $$\begin{array} { l | c c c c c } 
x & 1 & 2 & 3 & 4 & 5 \
\hline p ( x ) & 0.25 & 0.33 & 0.17 & 0.15 & 0.10
\end{array}$$
-What is the probability that a randomly selected Egyptian household will have more than 2 children?

Accepted Answer

The answer of Egyptian
Let x represent the number of children...

Question 11

New York City
New York City is estimated to have 21 percent of the homes with T.V.sets served by cable T.V.If a random sample of four is taken from these homes find the probability distribution of x where x is the number of T.V.homes in the sample having cable T.V.
-What is the probability that all four T.V.homes in the sample are served by cable?

Accepted Answer

The answer of New York City
New York City is estimated...

Question 12

Poisson Distribution
One half of one percent of the checks received by an oil company are returned due to insufficient funds.Yesterday 500 checks were received in the mail.Let x equal the number of these checks which will be returned due to insufficient funds.
-Use the Poisson distribution to compute the binomial probability that one or more checks are returned.

Accepted Answer

The answer of Poisson Distribution
One half of one percent of...

Question 13

A Company manufactures women's hosiery.The company sells slightly irregular panty hose through a mail-order catalog service.If the company produces 300,000 pairs of hose per day and the probability of a pair not being irregular is 0.92,the average number that will be available for the catalog order department is:

Accepted Answer

A)  22080 
B)  148.59 
C)  24000 
D)  154.92 
E)  15.49 
A)  22080 
B)  148.59 
C)  24000 
D)  154.92 
E)  15.49

Question 14

The number of vacancies at a Gulf Shore resort motel on a day during weekends through the tourist season has the following probability distribution: $$\begin{array} { | c | c | } 
\hline \text { Number of Vacancies } & \text { Probability } \
\boldsymbol { x } & \boldsymbol { P } ( \boldsymbol { x } ) \
\hline 0 & 0.29 \
1 & 0.18 \
2 & 0.15 \
3 & 0.13 \
4 & 0.11 \
5 & 0.08 \
6 & 0.06 \
\hline
\end{array}$$ If the mean is 2.07,compute the variance of this distribution.

Accepted Answer

The answer of The number of vacancies at a Gulf...

Question 15

The ____________________ for a discrete random variable lists all possible values the variable can assume,along with their respective probabilities of occurrence.

Accepted Answer

probabilit

Question 16

Which of the following is not a characteristic of a binomial experiment?

Accepted Answer

A)  There is a sequence of identical trials. 
B)  Each trial results in two or more outcomes. 
C)  The trials are independent of each other. 
D)  Probability of success p is the same from one trial to another. 
A)  There is a sequence of identical trials. 
B)  Each trial results in two or more outcomes. 
C)  The trials are independent of each other. 
D)  Probability of success p is the same from one trial to another.

Question 17

The ____________________ applies to events for which the probability of occurrence over a given span of time,space,or distance is extremely small.

Accepted Answer

Poisson di

Question 18

A random variable that can take on a value at any point along an interval is referred to as a ____________________.

Accepted Answer

continuous

Question 19

As a rule of thumb,a binomial distribution for which the number of trials n is large can well be approximated by a Poisson distribution when the probability of success, $\pi$ ,is:

Accepted Answer

A)  larger than 0.95. 
B)  larger than 0.50. 
C)  between 0.50 and 0.95. 
D)  smaller than .05. 
A)  larger than 0.95. 
B)  larger than 0.50. 
C)  between 0.50 and 0.95. 
D)  smaller than .05.

Question 20

A table,formula,or graph that shows all possible values a random variable can assume,together with their associated probabilities is referred to as:

Accepted Answer

A)  Discrete probability distribution 
B)  Continuous probability distribution 
C)  Mixed probability distribution 
D)  Contaminated probability distribution 
A)  Discrete probability distribution 
B)  Continuous probability distribution 
C)  Mixed probability distribution 
D)  Contaminated probability distribution

The hypergeometric distribution is similar to the binomial distribution in that successive trials are considered to be independent of one another.

Egyptian Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: x 1 2 3 4 5 p(x) 0.25 0.33 0.17 0.15 0.10 -Find the standard deviation of the number of children in an Egyptian household.

The Poisson random variable is a:

In an intermediate level economics class there are 18 students.Nine of these are economics majors.For class discussion purposes three students are randomly selected.What is the probability that at least one is an economics major?

Let x be a Poisson random variable with $\lambda$ = 6.Use the table of Poisson probabilities to find: A)P(x ≤ 8) B)P(x = 8) C)P(x ≥ 5) D)P(6 ≤ x ≤ 10)

One characteristic of a discrete probability distribution is that the sum of the probabilities for all the possible values for x must be between 0 and 1.

What is the expected number of canoes that will capsize?

Egyptian Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: x 1 2 3 4 5 p(x) 0.25 0.33 0.17 0.15 0.10 -What is the probability that a randomly selected Egyptian household will have more than 2 children?

The number of vacancies at a Gulf Shore resort motel on a day during weekends through the tourist season has the following probability distribution: Number of Vacancies Probability ( ) 0 0.29 1 0.18 2 0.15 3 0.13 4 0.11 5 0.08 6 0.06 If the mean is 2.07,compute the variance of this distribution.

The ____________________ for a discrete random variable lists all possible values the variable can assume,along with their respective probabilities of occurrence.

Which of the following is not a characteristic of a binomial experiment?

The ____________________ applies to events for which the probability of occurrence over a given span of time,space,or distance is extremely small.

A random variable that can take on a value at any point along an interval is referred to as a ____________________.

As a rule of thumb,a binomial distribution for which the number of trials n is large can well be approximated by a Poisson distribution when the probability of success, $\pi$ ,is:

A table,formula,or graph that shows all possible values a random variable can assume,together with their associated probabilities is referred to as:

A Preview of Business Statistics

Visual Description of Data

Statistical Description of Data

Data Collection and Sampling Methods

Probability: Review of Basic Concepts

Continuous Probability Distributions

Sampling Distributions

Estimation From Sample Data

Hypothesis Tests Involving a Sample Mean or Proportion

Hypothesis Tests Involving Two Sample Means

Analysis of Variance Tests

Chi-Square Applications

Nonparametric Methods

Simple Linear Regression and Correlation

Multiple Regression and Correlation

Model Building

Models for Time Series and Forecasting

Decision Theory

Total Quality Management

Filters

Exam 6: Discrete Probability Distributions

The hypergeometric distribution is similar to the binomial distribution in that successive trials are considered to be independent of one another.

Egyptian Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: x 1 2 3 4 5 p(x) 0.25 0.33 0.17 0.15 0.10 -Find the standard deviation of the number of children in an Egyptian household.

The Poisson random variable is a:

In an intermediate level economics class there are 18 students.Nine of these are economics majors.For class discussion purposes three students are randomly selected.What is the probability that at least one is an economics major?

Let x be a Poisson random variable with λ\lambdaλ = 6.Use the table of Poisson probabilities to find: A)P(x ≤ 8) B)P(x = 8) C)P(x ≥ 5) D)P(6 ≤ x ≤ 10)

One characteristic of a discrete probability distribution is that the sum of the probabilities for all the possible values for x must be between 0 and 1.

What is the expected number of canoes that will capsize?

Egyptian Let x represent the number of children in an Egyptian household.The probability distribution of x is as follows: x 1 2 3 4 5 p(x) 0.25 0.33 0.17 0.15 0.10 -What is the probability that a randomly selected Egyptian household will have more than 2 children?

The number of vacancies at a Gulf Shore resort motel on a day during weekends through the tourist season has the following probability distribution: Number of Vacancies Probability ( ) 0 0.29 1 0.18 2 0.15 3 0.13 4 0.11 5 0.08 6 0.06 If the mean is 2.07,compute the variance of this distribution.

The ____________________ for a discrete random variable lists all possible values the variable can assume,along with their respective probabilities of occurrence.

Which of the following is not a characteristic of a binomial experiment?

The ____________________ applies to events for which the probability of occurrence over a given span of time,space,or distance is extremely small.

A random variable that can take on a value at any point along an interval is referred to as a ____________________.

As a rule of thumb,a binomial distribution for which the number of trials n is large can well be approximated by a Poisson distribution when the probability of success, π\piπ ,is:

A table,formula,or graph that shows all possible values a random variable can assume,together with their associated probabilities is referred to as:

A Preview of Business Statistics

Visual Description of Data

Statistical Description of Data

Data Collection and Sampling Methods

Probability: Review of Basic Concepts

Continuous Probability Distributions

Sampling Distributions

Estimation From Sample Data

Hypothesis Tests Involving a Sample Mean or Proportion

Hypothesis Tests Involving Two Sample Means

Analysis of Variance Tests

Chi-Square Applications

Nonparametric Methods

Simple Linear Regression and Correlation

Multiple Regression and Correlation

Model Building

Models for Time Series and Forecasting

Decision Theory

Total Quality Management

Filters

Let x be a Poisson random variable with $\lambda$ = 6.Use the table of Poisson probabilities to find: A)P(x ≤ 8) B)P(x = 8) C)P(x ≥ 5) D)P(6 ≤ x ≤ 10)

As a rule of thumb,a binomial distribution for which the number of trials n is large can well be approximated by a Poisson distribution when the probability of success, $\pi$ ,is: