Question 1

Continuous probability distributions depend on all of the following parameters except a ________.

Accepted Answer

A) location parameter 
B) scale parameter 
C) formal parameter 
D) shape parameter 
A) location parameter 
B) scale parameter 
C) formal parameter 
D) shape parameter C

Question 2

A continuous random variable is ________.

Accepted Answer

A) a variable for which the number of possible outcomes can be counted 
B) a variable that has outcomes over one or more intervals of real numbers 
C) a characterization of the possible values that a random variable may assume along with the probability of each value 
D) a variable for which there is only one possible value 
A) a variable for which the number of possible outcomes can be counted 
B) a variable that has outcomes over one or more intervals of real numbers 
C) a characterization of the possible values that a random variable may assume along with the probability of each value 
D) a variable for which there is only one possible value B

Question 3

The probability that a random variable in a continuous probability distribution will assume a value between a and b is given by ________.

Accepted Answer

A) the area above the function curve between two boundary values a and b 
B) the width of the function curve between two boundary values a and b 
C) the area beneath the function curve between two boundary values a and b 
D) the height of the function curve between two boundary values a and b 
A) the area above the function curve between two boundary values a and b 
B) the width of the function curve between two boundary values a and b 
C) the area beneath the function curve between two boundary values a and b 
D) the height of the function curve between two boundary values a and b C

Question 4

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random reported a temperature lower than 50°F?

Accepted Answer

μ = 75.55,σ = 10.95,and x = 50.Using Exc

Question 5

A marginal probability represents the probability ________.

Accepted Answer

A) associated with the outcomes of each random variable regardless of the value of the other 
B) of a change in a random variable due to a change in another random variable 
C) associated with the outcomes of two different random variables that occur at the same time 
D) that is found by multiplying the joint probabilities of two variables 
A) associated with the outcomes of each random variable regardless of the value of the other 
B) of a change in a random variable due to a change in another random variable 
C) associated with the outcomes of two different random variables that occur at the same time 
D) that is found by multiplying the joint probabilities of two variables

Question 6

What is the likelihood of finding a price between $3.71 and $3.85 for a gallon of gasoline from a normally distributed population of gas prices? Assume μ = $3.78 and σ = $0.05.

Accepted Answer

A) 0.4974 
B) 0.9948 
C) 0.8385 
D) 0.2487 
A) 0.4974 
B) 0.9948 
C) 0.8385 
D) 0.2487

Question 7

The probability of the event A,at least fifty people will show up for traffic court today,is 35%.What is the probability of the complement of A?

Accepted Answer

A) 85% 
B) 35% 
C) 15% 
D) 65% 
A) 85% 
B) 35% 
C) 15% 
D) 65%

Question 8

Families with an income range of $35,000 to $55,000 are likely to buy the latest Star Quest DVD.What is the variance for this uniform probability distribution of family income?

Accepted Answer

A) $675,000,000 
B) $200,000,000 
C) $33,333,333 
D) $1666.67 
A) $675,000,000 
B) $200,000,000 
C) $33,333,333 
D) $1666.67

Question 9

The Poisson distribution is a version of the discrete distribution used ________.

Accepted Answer

A) to adjust for the likelihood of one event occurring most of the time 
B) as a complement to the Bernoulli distribution 
C) to measure the number of events occurring in an interval of time 
D) to simulate a continuous distribution 
A) to adjust for the likelihood of one event occurring most of the time 
B) as a complement to the Bernoulli distribution 
C) to measure the number of events occurring in an interval of time 
D) to simulate a continuous distribution

Question 10

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random will report a temperature between 70°F and 80°F?

Accepted Answer

μ = 75.55,σ = 10.95.The probability that

Question 11

A random variable is a function that assigns a real number to ________.

Accepted Answer

A) each event in a sample space 
B) each outcome within a sample space 
C) each experiment in a sample space 
D) each sample space within the universe 
A) each event in a sample space 
B) each outcome within a sample space 
C) each experiment in a sample space 
D) each sample space within the universe

Question 12

Which of the following cannot be used to develop a probability distribution?

Accepted Answer

A) listing the probabilities for the outcomes of rolling two dice 
B) measuring the frequency of low and high temperatures for the month of November 
C) stating that there is a definite chance of rain tomorrow 
D) surveying sports experts at the beginning of the season on the odds of the Colorado Rockies winning the World Series 
A) listing the probabilities for the outcomes of rolling two dice 
B) measuring the frequency of low and high temperatures for the month of November 
C) stating that there is a definite chance of rain tomorrow 
D) surveying sports experts at the beginning of the season on the odds of the Colorado Rockies winning the World Series

Question 13

Use classical probability to determine the probability of choosing a day of the week that begins with the letter "S."

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 14

Over time,it's been found that 45% of customers at Daily Dose buy the Deluxe Joe.What is the probability that out of the next 10 customers,exactly five will buy the Deluxe Joe?

Accepted Answer

A) 1.85% 
B) 100% 
C) 23.4% 
D) 98.16% 
A) 1.85% 
B) 100% 
C) 23.4% 
D) 98.16%

Question 15

For a discrete random variable A,the probability distribution of the discrete outcomes is called a ________.

Accepted Answer

A) conditional mass function,c(a) 
B) cumulative frequency function,m(a) 
C) probability mass function,f(a) 
D) discrete value function,d(a) 
A) conditional mass function,c(a) 
B) cumulative frequency function,m(a) 
C) probability mass function,f(a) 
D) discrete value function,d(a)

Question 16

Which of the following is not true of the exponential distribution?

Accepted Answer

A) The exponential distribution has two parameters,λ and ε. 
B) The exponential distribution models the time between randomly occurring events. 
C) For the exponential distribution,the current time has no effect on future outcomes. 
D) The exponential distribution has its greatest density at 0. 
A) The exponential distribution has two parameters,λ and ε. 
B) The exponential distribution models the time between randomly occurring events. 
C) For the exponential distribution,the current time has no effect on future outcomes. 
D) The exponential distribution has its greatest density at 0.

Question 17

The expected value of the exponential distribution is ________.

Accepted Answer

A)    
B) E 
C)    
D) ln e 
A)    
B) E 
C)    
D) ln e

Question 18

The curve that characterizes outcomes of a continuous random variable is called a ________.

Accepted Answer

A) cumulative distribution function,c(x) 
B) probability mass function,p(x) 
C) continuous random function,r(x) 
D) probability density function,f(x) 
A) cumulative distribution function,c(x) 
B) probability mass function,p(x) 
C) continuous random function,r(x) 
D) probability density function,f(x)

Question 19

Compare and contrast discrete random variables and continuous random variables.

Accepted Answer

A discrete random variable is one for wh

Question 20

What is sample space?

Accepted Answer

A) the collection of all possible outcomes 
B) a process that results in some outcome 
C) a theoretical result 
D) the absolute values of all outcomes/the likelihood of an outcome 
A) the collection of all possible outcomes 
B) a process that results in some outcome 
C) a theoretical result 
D) the absolute values of all outcomes/the likelihood of an outcome

Continuous probability distributions depend on all of the following parameters except a ________.

A continuous random variable is ________.

The probability that a random variable in a continuous probability distribution will assume a value between a and b is given by ________.

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random reported a temperature lower than 50°F?

A marginal probability represents the probability ________.

What is the likelihood of finding a price between $3.71 and $3.85 for a gallon of gasoline from a normally distributed population of gas prices? Assume μ = $3.78 and σ = $0.05.

The probability of the event A,at least fifty people will show up for traffic court today,is 35%.What is the probability of the complement of A?

Families with an income range of $35,000 to $55,000 are likely to buy the latest Star Quest DVD.What is the variance for this uniform probability distribution of family income?

The Poisson distribution is a version of the discrete distribution used ________.

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random will report a temperature between 70°F and 80°F?

A random variable is a function that assigns a real number to ________.

Which of the following cannot be used to develop a probability distribution?

Use classical probability to determine the probability of choosing a day of the week that begins with the letter "S."

Over time,it's been found that 45% of customers at Daily Dose buy the Deluxe Joe.What is the probability that out of the next 10 customers,exactly five will buy the Deluxe Joe?

For a discrete random variable A,the probability distribution of the discrete outcomes is called a ________.

Which of the following is not true of the exponential distribution?

The expected value of the exponential distribution is ________.

The curve that characterizes outcomes of a continuous random variable is called a ________.

Compare and contrast discrete random variables and continuous random variables.

What is sample space?

Data and Business Decisions

Descriptive Statistics and Data Analysis

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters

Exam 3: Probability Concepts and Distributions

Continuous probability distributions depend on all of the following parameters except a ________.

A continuous random variable is ________.

The probability that a random variable in a continuous probability distribution will assume a value between a and b is given by ________.

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random reported a temperature lower than 50°F?

A marginal probability represents the probability ________.

What is the likelihood of finding a price between $3.71 and $3.85 for a gallon of gasoline from a normally distributed population of gas prices? Assume μ = $3.78 and σ = $0.05.

The probability of the event A,at least fifty people will show up for traffic court today,is 35%.What is the probability of the complement of A?

Families with an income range of $35,000 to $55,000 are likely to buy the latest Star Quest DVD.What is the variance for this uniform probability distribution of family income?

The Poisson distribution is a version of the discrete distribution used ________.

It was reported that the mean high temperature in the continental United States on October 5,2011 was 75.77°F,with a standard deviation of 10.95°F.What is the probability that a city chosen at random will report a temperature between 70°F and 80°F?

A random variable is a function that assigns a real number to ________.

Which of the following cannot be used to develop a probability distribution?

Use classical probability to determine the probability of choosing a day of the week that begins with the letter "S."

Over time,it's been found that 45% of customers at Daily Dose buy the Deluxe Joe.What is the probability that out of the next 10 customers,exactly five will buy the Deluxe Joe?

For a discrete random variable A,the probability distribution of the discrete outcomes is called a ________.

Which of the following is not true of the exponential distribution?

The expected value of the exponential distribution is ________.

The curve that characterizes outcomes of a continuous random variable is called a ________.

Compare and contrast discrete random variables and continuous random variables.

What is sample space?

Data and Business Decisions

Descriptive Statistics and Data Analysis

Sampling and Estimation

Hypothesis Testing and Statistical Inference

Regression Analysis

Forecasting

Introduction to Statistical Quality Control

Building and Using Decision Models

Decision Models With Uncertainty and Risk

Decisions, uncertainty, and Risk

Queues and Process Simulation Modeling

Linear Optimization

Integer, nonlinear, and Advanced Optimization Methods

Filters