Question 1

A posterior probability value is a prior probability value that has been:

Accepted Answer

A)  modified on the basis of new information. 
B)  multiplied by a conditional probability value. 
C)  divided by a conditional probability value. 
D)  added to a conditional probability value. 
A)  modified on the basis of new information. 
B)  multiplied by a conditional probability value. 
C)  divided by a conditional probability value. 
D)  added to a conditional probability value.

Question 2

If A and B are disjoint events with P(A) = 0.70, then P(B):

Accepted Answer

A)  can be any value between 0 and 1 
B)  can be any value between 0 and 0.70 
C)  cannot be larger than 0.30 
D)  cannot be determined with the information given 
A)  can be any value between 0 and 1 
B)  can be any value between 0 and 0.70 
C)  cannot be larger than 0.30 
D)  cannot be determined with the information given

Question 3

Bayes' Law is used to compute:

Accepted Answer

A)  prior probabilities. 
B)  joint probabilities. 
C)  union probabilities. 
D)  posterior probabilities. 
A)  prior probabilities. 
B)  joint probabilities. 
C)  union probabilities. 
D)  posterior probabilities.

Question 4

The probability of the intersection is called a joint probability.

Accepted Answer

A) True 
 B)False

Question 5

We can apply the multiplication rule to compute the probability that two events occur at the same time.

Accepted Answer

A) True 
 B)False

Question 6

The probability of an event is the ____________________ of the probabilities of the simple events that constitute the event.

Accepted Answer

The answer of The probability of an event is the...

Question 7

Suppose P(A) = 0.30.The probability of the complement of A is:

Accepted Answer

A)  0.30 
B)  0.70 
C)  -0.30 
D)  None of these choices. 
A)  0.30 
B)  0.70 
C)  -0.30 
D)  None of these choices.

Question 8

If two events are independent, what is the probability that they both occur?

Accepted Answer

A)  0 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given 
A)  0 
B)  0.50 
C)  1.00 
D)  Cannot be determined from the information given

Question 9

Events A and B are either independent or mutually exclusive.

Accepted Answer

A) True 
 B)False

Question 10

Hobby Shop Sales
Sales records of a hobby shop showed the following number of radio controlled trucks sold weekly for each of the last 50 weeks.
  
-{Hobby Shop Sales Narrative} What is the probability of selling between 1 and 3 (inclusive) trucks in any given week?

Accepted Answer

The answer of Hobby Shop Sales
Sales records of a hobby...

Question 11

College Professorship
A Ph.D.graduate has applied for a job with two colleges: A and B.The graduate feels that she has a 60% chance of receiving an offer from college A and a 50% chance of receiving an offer from college B.If she receives an offer from college B, she believes that she has an 80% chance of receiving an offer from college A.Let A = receiving an offer from college A, and let B = receiving an offer from college B.
-{College Professorship Narrative} What is the probability that at least one college will make her an offer?

Accepted Answer

The answer of College Professorship
A Ph.D.graduate has applied for a...

Question 12

Alana, Eva, and Stephanie, three candidates for the presidency of a college's student body, are to address a student forum.The forum's organizer is to select the order in which the candidates will give their speeches, and must do so in such a way that each possible order is equally likely to be selected.
a.
What is the random experiment?
b.
List the outcomes in the sample space.
c.
Assign probabilities to the outcomes.
d.
What is the probability that Stephanie will speak first?
e.
What is the probability that Alana will speak before Stephanie does?

Accepted Answer

a.
The random experiment is to observe t

Question 13

There are ____________________ requirements of probabilities for the outcomes of a sample space.

Accepted Answer

The answer of There are ____________________ requirements of probabilities for...

Question 14

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

Accepted Answer

A) True 
 B)False

Question 15

If A and B are two independent events with P(A) = 0.9 and P(B|A) = 0.5, then P(A and B) = 0.45.

Accepted Answer

A) True 
 B)False

Question 16

The collection of all possible outcomes of an experiment is called:

Accepted Answer

A)  a simple event 
B)  a sample space 
C)  a sample 
D)  a population 
A)  a simple event 
B)  a sample space 
C)  a sample 
D)  a population

Question 17

The ____________________ rule is used to calculate the probability of the union of two events.

Accepted Answer

The answer of The ____________________ rule is used to calculate...

Question 18

If event A and event B cannot occur at the same time, then A and B are said to be

Accepted Answer

A)  mutually exclusive 
B)  independent 
C)  collectively exhaustive 
D)  None of these choices. 
A)  mutually exclusive 
B)  independent 
C)  collectively exhaustive 
D)  None of these choices.

Question 19

The sample space of the toss of a balanced die is S = {1, 2, 3, 4, 5, 6}.If the die is balanced, each simple event (outcome) has the same probability.Find the probability of the following events:
a.
Rolling an odd number
b.
Rolling a number less than or equal to 3
c.
Rolling a number greater than or equal to 5
d.
Rolling a number between 2 and 5, inclusive.

Accepted Answer

a.
3/6
b.

Question 20

Club Members
A survey of a club's members indicates that 50% own a home, 80% own a car, and 90% of the homeowners who subscribe also own a car.
-{Club Members Narrative} What is the probability that a club member owns neither a car nor a house?

Accepted Answer

The answer of Club Members
A survey of a club's members...

A posterior probability value is a prior probability value that has been:

If A and B are disjoint events with P(A) = 0.70, then P(B):

Bayes' Law is used to compute:

The probability of the intersection is called a joint probability.

We can apply the multiplication rule to compute the probability that two events occur at the same time.

The probability of an event is the ____________________ of the probabilities of the simple events that constitute the event.

Suppose P(A) = 0.30.The probability of the complement of A is:

If two events are independent, what is the probability that they both occur?

Events A and B are either independent or mutually exclusive.

Hobby Shop Sales Sales records of a hobby shop showed the following number of radio controlled trucks sold weekly for each of the last 50 weeks. -{Hobby Shop Sales Narrative} What is the probability of selling between 1 and 3 (inclusive) trucks in any given week?

There are ____________________ requirements of probabilities for the outcomes of a sample space.

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

If A and B are two independent events with P(A) = 0.9 and P(B|A) = 0.5, then P(A and B) = 0.45.

The collection of all possible outcomes of an experiment is called:

The ____________________ rule is used to calculate the probability of the union of two events.

If event A and event B cannot occur at the same time, then A and B are said to be

Club Members A survey of a club's members indicates that 50% own a home, 80% own a car, and 90% of the homeowners who subscribe also own a car. -{Club Members Narrative} What is the probability that a club member owns neither a car nor a house?

What Is Statistics

Graphical Descriptive Techniques I

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Filters

Exam 6: Probability

A posterior probability value is a prior probability value that has been:

If A and B are disjoint events with P(A) = 0.70, then P(B):

Bayes' Law is used to compute:

The probability of the intersection is called a joint probability.

We can apply the multiplication rule to compute the probability that two events occur at the same time.

The probability of an event is the ____________________ of the probabilities of the simple events that constitute the event.

Suppose P(A) = 0.30.The probability of the complement of A is:

If two events are independent, what is the probability that they both occur?

Events A and B are either independent or mutually exclusive.

Hobby Shop Sales Sales records of a hobby shop showed the following number of radio controlled trucks sold weekly for each of the last 50 weeks. -{Hobby Shop Sales Narrative} What is the probability of selling between 1 and 3 (inclusive) trucks in any given week?

There are ____________________ requirements of probabilities for the outcomes of a sample space.

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

If A and B are two independent events with P(A) = 0.9 and P(B|A) = 0.5, then P(A and B) = 0.45.

The collection of all possible outcomes of an experiment is called:

The ____________________ rule is used to calculate the probability of the union of two events.

If event A and event B cannot occur at the same time, then A and B are said to be

Club Members A survey of a club's members indicates that 50% own a home, 80% own a car, and 90% of the homeowners who subscribe also own a car. -{Club Members Narrative} What is the probability that a club member owns neither a car nor a house?

What Is Statistics

Graphical Descriptive Techniques I

Graphical Descriptive Techniques II

Numerical Descriptive Techniques

Data Collection and Sampling

Random Variables and Discrete Probability Distributions

Continuous Probability Distributions

Sampling Distributions

Introduction to Estimation

Introduction to Hypothesis Testing

Inference About a Population

Inference About Comparing Two Populations

Analysis of Variance

Chi-Squared Tests

Simple Linear Regression and Correlation

Multiple Regression

Filters