Question 1

The probability that event A will not occur is denoted as $P ( \bar { A } )$.

Accepted Answer

A) True 
 B)False

Question 2

Suppose A and B are mutually exclusive events where P(A)= 0.3 and P(B)= 0.4,then P(A and B)= 0.12.

Accepted Answer

A) True 
 B)False

Question 3

A function that associates a numerical value with each possible outcome of an uncertain event is called a

Accepted Answer

A)  conditional variable 
B)  random variable 
C)  population variable 
D)  sample variable 
A)  conditional variable 
B)  random variable 
C)  population variable 
D)  sample variable

Question 4

The probabilities shown in a table with two rows, $A _ { 1 } \text { and } A _ { 2 }$
And two columns, $B _ { 1 } \text { and } B _ { 2 }$
,are as follows: $P \left( A _ { 1 } \text { and } B _ { 1 } \right) = .10$
, $P \left( A _ { 1 } \text { and } B _ { 2 } \right) = .30$
, $P \left( A _ { 2 } \text { and } B _ { 1 } \right) = .05$
,and $P \left( A _ { 2 } \text { and } B _ { 2 } \right) = .55$
)Then $P \left( A _ { 1 } \mid B _ { 2 } \right)$
,calculated up to two decimals,is

Accepted Answer

A)  .33 
B)  .35 
C)  .65 
D)  .67 
A)  .33 
B)  .35 
C)  .65 
D)  .67

Question 5

Which of the following best describes the concept of probability?

Accepted Answer

A)  It is a measure of the likelihood that a particular event will occur. 
B)  It is a measure of the likelihood that a particular event will occur,given that another event has already occurred. 
C)  It is a measure of the likelihood of the simultaneous occurrence of two or more events. 
D)  None of these options. 
A)  It is a measure of the likelihood that a particular event will occur. 
B)  It is a measure of the likelihood that a particular event will occur,given that another event has already occurred. 
C)  It is a measure of the likelihood of the simultaneous occurrence of two or more events. 
D)  None of these options.

Question 6

If P(A)= 0.25 and P(B)= 0.65,then P(A and B)is:

Accepted Answer

A)  0.25 
B)  0.40 
C)  0.90 
D)  Cannot be determined from the information given 
A)  0.25 
B)  0.40 
C)  0.90 
D)  Cannot be determined from the information given

Question 7

Two events are said to be independent when knowledge of one event is of no value when assessing the probability of the other.

Accepted Answer

A) True 
 B)False

Question 8

Conditional probability is the probability that an event will occur,with no other events taken into consideration.

Accepted Answer

A) True 
 B)False

Question 9

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

Accepted Answer

A)  0.00 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given. 
A)  0.00 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given.

Question 10

The formal way to revise probabilities based on new information is to use:

Accepted Answer

A)  complementary probabilities 
B)  conditional probabilities 
C)  unilateral probabilities 
D)  common sense probabilities 
A)  complementary probabilities 
B)  conditional probabilities 
C)  unilateral probabilities 
D)  common sense probabilities

Question 11

If two events are collectively exhaustive,what is the probability that both occur at the same time?

Accepted Answer

A)  0.00 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given. 
A)  0.00 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given.

Question 12

Suppose that after graduation you will either buy a new car (event A)or take a trip to Europe (event B).Events A and B are mutually exclusive.

Accepted Answer

A) True 
 B)False

Question 13

Suppose A and B are mutually exclusive events where P(A)= 0.2 and P(B)= 0.5,then P(A or B)= 0.70.

Accepted Answer

A) True 
 B)False

Question 14

The temperature of the room in which you are writing this test is a continuous random variable.

Accepted Answer

A) True 
 B)False

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

Subjective probability is the probability that a given event will occur,given that another event has already occurred.

Accepted Answer

A) True 
 B)False

Question 17

The law of large numbers is relevant to the estimation of

Accepted Answer

A)  objective probabilities 
B)  subjective probabilities 
C)  both objective and subjective probabilities 
D)  neither objective nor subjective probabilities 
A)  objective probabilities 
B)  subjective probabilities 
C)  both objective and subjective probabilities 
D)  neither objective nor subjective probabilities

Question 18

The number of cars produced by GM during a given quarter is a continuous random variable.

Accepted Answer

A) True 
 B)False

Question 19

You think you have a 90% chance of passing your statistics class.This is an example of subjective probability.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following statements are true?

Accepted Answer

A)  Probabilities must be negative 
B)  Probabilities must be greater than 1 
C)  The sum of all probabilities for a random variable must be equal to 1 
D)  All of these options are true. 
A)  Probabilities must be negative 
B)  Probabilities must be greater than 1 
C)  The sum of all probabilities for a random variable must be equal to 1 
D)  All of these options are true.

The probability that event A will not occur is denoted as $P ( \bar { A } )$ .

Suppose A and B are mutually exclusive events where P(A)= 0.3 and P(B)= 0.4,then P(A and B)= 0.12.

A function that associates a numerical value with each possible outcome of an uncertain event is called a

Which of the following best describes the concept of probability?

If P(A)= 0.25 and P(B)= 0.65,then P(A and B)is:

Two events are said to be independent when knowledge of one event is of no value when assessing the probability of the other.

Conditional probability is the probability that an event will occur,with no other events taken into consideration.

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

The formal way to revise probabilities based on new information is to use:

If two events are collectively exhaustive,what is the probability that both occur at the same time?

Suppose that after graduation you will either buy a new car (event A)or take a trip to Europe (event B).Events A and B are mutually exclusive.

Suppose A and B are mutually exclusive events where P(A)= 0.2 and P(B)= 0.5,then P(A or B)= 0.70.

The temperature of the room in which you are writing this test is a continuous random variable.

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

Subjective probability is the probability that a given event will occur,given that another event has already occurred.

The law of large numbers is relevant to the estimation of

The number of cars produced by GM during a given quarter is a continuous random variable.

You think you have a 90% chance of passing your statistics class.This is an example of subjective probability.

Which of the following statements are true?

Introduction to Data Analysis and Decision Making

Describing the Distribution of a Single Variable

Finding Relationships Among Variables

Normal, Binomial, Poisson, and Exponential Distributions

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

Importing Data Into Excel

Analysis of Variance and Experimental Design

Statistical Process Control

Filters

Exam 4: Probability and Probability Distributions

The probability that event A will not occur is denoted as P(Aˉ)P ( \bar { A } )P(Aˉ) .

Suppose A and B are mutually exclusive events where P(A)= 0.3 and P(B)= 0.4,then P(A and B)= 0.12.

A function that associates a numerical value with each possible outcome of an uncertain event is called a

Which of the following best describes the concept of probability?

If P(A)= 0.25 and P(B)= 0.65,then P(A and B)is:

Two events are said to be independent when knowledge of one event is of no value when assessing the probability of the other.

Conditional probability is the probability that an event will occur,with no other events taken into consideration.

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

The formal way to revise probabilities based on new information is to use:

If two events are collectively exhaustive,what is the probability that both occur at the same time?

Suppose that after graduation you will either buy a new car (event A)or take a trip to Europe (event B).Events A and B are mutually exclusive.

Suppose A and B are mutually exclusive events where P(A)= 0.2 and P(B)= 0.5,then P(A or B)= 0.70.

The temperature of the room in which you are writing this test is a continuous random variable.

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

Subjective probability is the probability that a given event will occur,given that another event has already occurred.

The law of large numbers is relevant to the estimation of

The number of cars produced by GM during a given quarter is a continuous random variable.

You think you have a 90% chance of passing your statistics class.This is an example of subjective probability.

Which of the following statements are true?

Introduction to Data Analysis and Decision Making

Describing the Distribution of a Single Variable

Finding Relationships Among Variables

Normal, Binomial, Poisson, and Exponential Distributions

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

Importing Data Into Excel

Analysis of Variance and Experimental Design

Statistical Process Control

Filters

The probability that event A will not occur is denoted as $P ( \bar { A } )$ .