Question 1

A random variable X is normally distributed with a mean of 175 and a standard deviation of 50.Given that X = 150,its corresponding Z- score is -0.50.

Accepted Answer

A) True 
 B)False

Question 2

The number of car insurance policy holders is an example of a discrete random variable.

Accepted Answer

A) True 
 B)False

Question 3

The variance of a binomial distribution for which n = 100 and p = 0.20 is

Accepted Answer

A) 100. 
B) 80. 
C) 20. 
D) 16. 
A) 100. 
B) 80. 
C) 20. 
D) 16.

Question 4

The probability that event A will not occur is denoted as   .

Accepted Answer

A) True 
 B)False

Question 5

What is the distribution of X and what are the parameters?

Accepted Answer

Exponentia

Question 6

If events A and B have nonzero probabilities,then they can be both independent and mutually exclusive.

Accepted Answer

A) True 
 B)False

Question 7

The density function specifies the probability distribution of a continuous random variable.​

Accepted Answer

A) True 
 B)False

Question 8

Given that the random variable X is normally distributed with a mean of 80 and a standard deviation of 10,P(85   X   90)is

Accepted Answer

A) 0.5328. 
B) 0.3413. 
C) 0.1915. 
D) 0.1498. 
A) 0.5328. 
B) 0.3413. 
C) 0.1915. 
D) 0.1498.

Question 9

What is the expected number of the new microwaves sold that will require a warranty repair in the first 90 days?

Accepted Answer

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

Question 10

If the random variable X is normally distributed with mean   and standard deviation   ,then the random variable Z defined by   is also normally distributed with mean 0 and standard deviation 1.

Accepted Answer

A) True 
 B)False

Question 11

If two events are mutually exclusive and collectively exhaustive,what is the probability that both occur?

Accepted Answer

A) 0.0 
B) 0.5 
C) 1.0 
D) This can be any probability between 0 and 1. 
A) 0.0 
B) 0.5 
C) 1.0 
D) This can be any probability between 0 and 1.

Question 12

An administrator at Lakeside Middle School is interested in examining the probability of a child being late to school.The child is categorized as either late or not late.What type of distribution should the school use to examine this issue?

Accepted Answer

A) Binomial distribution 
B) Normal distribution 
C) Exponential distribution 
D) Poisson distribution 
A) Binomial distribution 
B) Normal distribution 
C) Exponential distribution 
D) Poisson distribution

Question 13

What is the expected number of bats sold on a typical day?

Accepted Answer

E(x)= 1.34

Question 14

If P(A)= P(A|B),then events A and B are said to be

Accepted Answer

A) mutually exclusive. 
B) independent. 
C) dependent. 
D) complementary. 
A) mutually exclusive. 
B) independent. 
C) dependent. 
D) complementary.

Question 15

The multiplication rule for two events A and B is: P(A and B)= P(A|B)P(A).

Accepted Answer

A) True 
 B)False

Question 16

Two events A and B are said to be independent if P(A and B)= P(A)+ P(B).

Accepted Answer

A) True 
 B)False

Question 17

On average,how many customers would you expect to see in line?

Accepted Answer

Expected number of c

Question 18

The local police department is interested in estimating the number of cars that fail to stop at a stop sign during a specified lunch hour.Which probability distribution should they use?

Accepted Answer

A) Binomial distribution 
B) Poisson distribution 
C) Normal distribution 
D) Uniform distribution 
A) Binomial distribution 
B) Poisson distribution 
C) Normal distribution 
D) Uniform distribution

Question 19

The Poisson probability distribution is one of the most commonly used continuous probability distributions.

Accepted Answer

A) True 
 B)False

Question 20

The binomial probability distribution is used with

Accepted Answer

A) a discrete random variable. 
B) a continuous random variable. 
C) either a discrete or a continuous random variable,depending on the variance. 
D) either a discrete or a continuous random variable,depending on the sample size. 
A) a discrete random variable. 
B) a continuous random variable. 
C) either a discrete or a continuous random variable,depending on the variance. 
D) either a discrete or a continuous random variable,depending on the sample size.

A random variable X is normally distributed with a mean of 175 and a standard deviation of 50.Given that X = 150,its corresponding Z- score is -0.50.

The number of car insurance policy holders is an example of a discrete random variable.

The variance of a binomial distribution for which n = 100 and p = 0.20 is

The probability that event A will not occur is denoted as .

What is the distribution of X and what are the parameters?

If events A and B have nonzero probabilities,then they can be both independent and mutually exclusive.

The density function specifies the probability distribution of a continuous random variable.

Given that the random variable X is normally distributed with a mean of 80 and a standard deviation of 10,P(85 X 90)is

What is the expected number of the new microwaves sold that will require a warranty repair in the first 90 days?

If the random variable X is normally distributed with mean and standard deviation ,then the random variable Z defined by is also normally distributed with mean 0 and standard deviation 1.

If two events are mutually exclusive and collectively exhaustive,what is the probability that both occur?

An administrator at Lakeside Middle School is interested in examining the probability of a child being late to school.The child is categorized as either late or not late.What type of distribution should the school use to examine this issue?

What is the expected number of bats sold on a typical day?

If P(A)= P(A|B),then events A and B are said to be

The multiplication rule for two events A and B is: P(A and B)= P(A|B)P(A).

Two events A and B are said to be independent if P(A and B)= P(A)+ P(B).

On average,how many customers would you expect to see in line?

The local police department is interested in estimating the number of cars that fail to stop at a stop sign during a specified lunch hour.Which probability distribution should they use?

The Poisson probability distribution is one of the most commonly used continuous probability distributions.

The binomial probability distribution is used with

Introduction to Business Analytics

Describing the Distribution of a Variable

Finding Relationships Among Variables

Business Intelligence Bifor Data Analysis

Decision Making Under Uncertainty

Sampling and Sampling Distributions

Confidence Interval Estimation

Hypothesis Testing

Regression Analysis: Estimating Relationships

Regression Analysis: Statistical Inference

Time Series Analysis and Forecasting

Introduction to Optimization Modeling

Optimization Models

Introduction to Simulation Modeling

Simulation Models

Data Mining

Analysis of Variance and Experimental Design

Statistical Process Control

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Exam 5: Probability and Probability Distributions

A random variable X is normally distributed with a mean of 175 and a standard deviation of 50.Given that X = 150,its corresponding Z- score is -0.50.

The number of car insurance policy holders is an example of a discrete random variable.

The variance of a binomial distribution for which n = 100 and p = 0.20 is

The probability that event A will not occur is denoted as .

What is the distribution of X and what are the parameters?

If events A and B have nonzero probabilities,then they can be both independent and mutually exclusive.

The density function specifies the probability distribution of a continuous random variable.​

Given that the random variable X is normally distributed with a mean of 80 and a standard deviation of 10,P(85 X 90)is

What is the expected number of the new microwaves sold that will require a warranty repair in the first 90 days?

If the random variable X is normally distributed with mean and standard deviation ,then the random variable Z defined by is also normally distributed with mean 0 and standard deviation 1.

If two events are mutually exclusive and collectively exhaustive,what is the probability that both occur?

An administrator at Lakeside Middle School is interested in examining the probability of a child being late to school.The child is categorized as either late or not late.What type of distribution should the school use to examine this issue?

What is the expected number of bats sold on a typical day?

If P(A)= P(A|B),then events A and B are said to be

The multiplication rule for two events A and B is: P(A and B)= P(A|B)P(A).

Two events A and B are said to be independent if P(A and B)= P(A)+ P(B).

On average,how many customers would you expect to see in line?

The local police department is interested in estimating the number of cars that fail to stop at a stop sign during a specified lunch hour.Which probability distribution should they use?

The Poisson probability distribution is one of the most commonly used continuous probability distributions.

The binomial probability distribution is used with

Introduction to Business Analytics

Describing the Distribution of a Variable

Finding Relationships Among Variables

Business Intelligence Bifor Data Analysis

Decision Making Under Uncertainty

Sampling and Sampling Distributions

Confidence Interval Estimation

Hypothesis Testing

Regression Analysis: Estimating Relationships

Regression Analysis: Statistical Inference

Time Series Analysis and Forecasting

Introduction to Optimization Modeling

Optimization Models

Introduction to Simulation Modeling

Simulation Models

Data Mining

Analysis of Variance and Experimental Design

Statistical Process Control

Filters

The density function specifies the probability distribution of a continuous random variable.