Question 1

The use of permutations or combinations is helpful in some cases when computing the probability of an event.

Accepted Answer

A) True 
 B)False

Question 2

If the odds for you getting a credit card solicitation in the mail this month are 1 to 4,then which of the following statements is true?

Accepted Answer

A) The probability of getting a credit card solicitation is 0.25. 
B) The probability of getting a credit card solicitation is 0.20. 
C) The probability of getting a credit card solicitation is 0.80. 
D) The probability of getting a credit card solicitation is 0.75. 
A) The probability of getting a credit card solicitation is 0.25. 
B) The probability of getting a credit card solicitation is 0.20. 
C) The probability of getting a credit card solicitation is 0.80. 
D) The probability of getting a credit card solicitation is 0.75.

Question 3

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A company wishes to evaluate the effectiveness of a marketing campaign.Seventy five percent of all potential professors were reached in a focused advertising program.Twenty eight percent of those contacted adopted the book while 8% of the adoptions came from professors who did not receive the promotional material.Define the following events of interest:
AS1U1B11S1U1B0 = Professor received advertising material
AS1U1B12S1U1B0 = Professor did not receive advertising material
BS1U1B11S1U1B0 = Professor adopts the book
BS1U1B12S1U1B0 = Professor does not adopt the book
-What is the probability that a professor who adopts the book received the advertising material?

Accepted Answer

P(A₁)= 0.75,P(A₂)= 1 - 0.75 = 0.

Question 4

Consider two events A and B.Which of the following statements is true?

Accepted Answer

A) If the probability of A given B is 0.4,then the probability of A given the complement of B is 0.6. 
B) If the probability of A given B is 0.4,then the probability of the complement of A given the complement of B is 0.6. 
C) If the probability of A given B is 0.4,then the probability of the complement of A given B is 0.6 
D) If the probability of A given B is 0.4 and the probability of A is 0.4,then events A and B are mutually exclusive. 
A) If the probability of A given B is 0.4,then the probability of A given the complement of B is 0.6. 
B) If the probability of A given B is 0.4,then the probability of the complement of A given the complement of B is 0.6. 
C) If the probability of A given B is 0.4,then the probability of the complement of A given B is 0.6 
D) If the probability of A given B is 0.4 and the probability of A is 0.4,then events A and B are mutually exclusive.

Question 5

An event must be independent of its complement.

Accepted Answer

A) True 
 B)False

Question 6

In applying Bayes' Theorem,as the prior probabilities increase,the posterior probabilities decrease.

Accepted Answer

A) True 
 B)False

Question 7

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A student has access to professor evaluations.Overall,he has enjoyed 70% of all classes he has taken.He finds that of the courses he has enjoyed,13% were taught by professors with poor evaluations.84% of the courses he has taken were taught by professors with good evaluations.
-What is the probability that the class was taught by a professor with good evaluations and that the student enjoyed the class?

Accepted Answer

Event A: Student enjoyed class

Question 8

The classical definition of probability is the limit of the proportion of times that event A occurs in a large number of trials,n.

Accepted Answer

A) True 
 B)False

Question 9

What is P(A ∩B)?

Accepted Answer

The answer of What is P(A ∩B)?...

Question 10

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Consider a sample space defined by events AS1U1B11S1U1B0,AS1U1B12S1U1B0,BS1U1B11S1U1B0,BS1U1B12S1U1B0.Let P(AS1U1B11S1U1B0)= 0.40 ,P(BS1U1B11S1U1B0 ∣ AS1U1B11S1U1B0)= 0.60
and P(BS1U1B11S1U1B0 ∣ AS1U1B12S1U1B0)= 0.70
-What is P(A1 ∩ B1)?

Accepted Answer

P(B₁ | A₁)= 0.60 = P(B

Question 11

If a plane has just left on time,what is the probability that it was airline A?

Accepted Answer

P(A | D)=

Question 12

The expression of an individual's degree of belief about the chance that an event will occur is called ________ probability.

Accepted Answer

A) objective 
B) classical 
C) relative frequency 
D) subjective 
A) objective 
B) classical 
C) relative frequency 
D) subjective

Question 13

If an event and its complement are equally likely to occur,the probability of that event must be 0.50.

Accepted Answer

A) True 
 B)False

Question 14

An individual can assign a subjective probability to an event A based on the individual's knowledge about A as long as -1 ≤ P(A)≤ 1.

Accepted Answer

A) True 
 B)False

Question 15

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Consider a sample space defined by events AS1U1B11S1U1B0,AS1U1B12S1U1B0,BS1U1B11S1U1B0,BS1U1B12S1U1B0.Let P(AS1U1B11S1U1B0)= 0.40 ,P(BS1U1B11S1U1B0 ∣ AS1U1B11S1U1B0)= 0.60
and P(BS1U1B11S1U1B0 ∣ AS1U1B12S1U1B0)= 0.70
-What is P(A2 ∣ B1)?

Accepted Answer

P(B₁ ∣ A₁)= 0.60 = P(B₁ ∩ A₁)/P(A₁)⇒ P(B₁ ∩ A₁)

Question 16

The probability of A,given B,must be at least as large as the probability of the intersection of A and B.

Accepted Answer

A) True 
 B)False

Question 17

The set of all basic outcomes from a random experiment is called the sample space.

Accepted Answer

A) True 
 B)False

Question 18

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The joint probabilities shown in a table with two rows,AS1U1B11S1U1B0 and AS1U1B12S1U1B0,and two columns,BS1U1B11S1U1B0 and BS1U1B12S1U1B0 are as follows: P(AS1U1B11S1U1B0 ∩ BS1U1B11S1U1B0)= 0.10,P(AS1U1B11S1U1B0 ∩ BS1U1B12S1U1B0)= 0.30,P(AS1U1B12S1U1B0 ∩ BS1U1B11S1U1B0)= 0.05,P(AS1U1B12S1U1B0 ∩ BS1U1B12S1U1B0)= 0.55
-What is P(B1)?

Accepted Answer

A) 0.40 
B) 0.60 
C) 0.15 
D) 0.85 
A) 0.40 
B) 0.60 
C) 0.15 
D) 0.85

Question 19

How useful is the test in predicting good sales achievement?

Accepted Answer

Since,P(B | A)= P(B)= 0.30,events A and

Question 20

In a survey of top executives,it was found that 17% had traveled internationally
on business.The probability of one of these executives fluently speaking a foreign language was found to be 10%.The probability that one of these executives neither spoke a foreign language nor had traveled internationally was 0.81.What is the probability that an executive who speaks a foreign language has traveled internationally?

Accepted Answer

T =Traveled internat

The use of permutations or combinations is helpful in some cases when computing the probability of an event.

If the odds for you getting a credit card solicitation in the mail this month are 1 to 4,then which of the following statements is true?

Consider two events A and B.Which of the following statements is true?

An event must be independent of its complement.

In applying Bayes' Theorem,as the prior probabilities increase,the posterior probabilities decrease.

The classical definition of probability is the limit of the proportion of times that event A occurs in a large number of trials,n.

What is P(A ∩B)?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A₁,A₂,B₁,B₂.Let P(A₁)= 0.40 ,P(B₁ ∣ A₁)= 0.60 and P(B₁ ∣ A₂)= 0.70 -What is P(A₁ ∩ B₁)?

If a plane has just left on time,what is the probability that it was airline A?

The expression of an individual's degree of belief about the chance that an event will occur is called ________ probability.

If an event and its complement are equally likely to occur,the probability of that event must be 0.50.

An individual can assign a subjective probability to an event A based on the individual's knowledge about A as long as -1 ≤ P(A)≤ 1.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A₁,A₂,B₁,B₂.Let P(A₁)= 0.40 ,P(B₁ ∣ A₁)= 0.60 and P(B₁ ∣ A₂)= 0.70 -What is P(A₂ ∣ B₁)?

The probability of A,given B,must be at least as large as the probability of the intersection of A and B.

The set of all basic outcomes from a random experiment is called the sample space.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The joint probabilities shown in a table with two rows,A₁ and A₂,and two columns,B₁ and B₂ are as follows: P(A₁ ∩ B₁)= 0.10,P(A₁ ∩ B₂)= 0.30,P(A₂ ∩ B₁)= 0.05,P(A₂ ∩ B₂)= 0.55 -What is P(B₁)?

How useful is the test in predicting good sales achievement?

Describing Data: Graphical

Describing Data: Numerical

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Hypothesis Testing: Additional Topics

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

Exam 3: Probability

The use of permutations or combinations is helpful in some cases when computing the probability of an event.

If the odds for you getting a credit card solicitation in the mail this month are 1 to 4,then which of the following statements is true?

Consider two events A and B.Which of the following statements is true?

An event must be independent of its complement.

In applying Bayes' Theorem,as the prior probabilities increase,the posterior probabilities decrease.

The classical definition of probability is the limit of the proportion of times that event A occurs in a large number of trials,n.

What is P(A ∩B)?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A1,A2,B1,B2.Let P(A1)= 0.40 ,P(B1 ∣ A1)= 0.60 and P(B1 ∣ A2)= 0.70 -What is P(A1 ∩ B1)?

If a plane has just left on time,what is the probability that it was airline A?

The expression of an individual's degree of belief about the chance that an event will occur is called ________ probability.

If an event and its complement are equally likely to occur,the probability of that event must be 0.50.

An individual can assign a subjective probability to an event A based on the individual's knowledge about A as long as -1 ≤ P(A)≤ 1.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A1,A2,B1,B2.Let P(A1)= 0.40 ,P(B1 ∣ A1)= 0.60 and P(B1 ∣ A2)= 0.70 -What is P(A2 ∣ B1)?

The probability of A,given B,must be at least as large as the probability of the intersection of A and B.

The set of all basic outcomes from a random experiment is called the sample space.

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The joint probabilities shown in a table with two rows,A1 and A2,and two columns,B1 and B2 are as follows: P(A1 ∩ B1)= 0.10,P(A1 ∩ B2)= 0.30,P(A2 ∩ B1)= 0.05,P(A2 ∩ B2)= 0.55 -What is P(B1)?

How useful is the test in predicting good sales achievement?

Describing Data: Graphical

Describing Data: Numerical

Discrete Random Variables and Probability Distributions

Continuous Random Variables and Probability Distributions

Sampling and Sampling Distributions

Estimation: Single Population

Estimation: Additional Topics

Hypothesis Testing: Single Population

Hypothesis Testing: Additional Topics

Simple Regression

Multiple Regression

Additional Topics in Regression Analysis

Analysis of Categorical Data

Analysis of Variance

Time-Series Analysis and Forecasting

Additional Topics in Sampling

Filters

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A₁,A₂,B₁,B₂.Let P(A₁)= 0.40 ,P(B₁ ∣ A₁)= 0.60 and P(B₁ ∣ A₂)= 0.70 -What is P(A₁ ∩ B₁)?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: Consider a sample space defined by events A₁,A₂,B₁,B₂.Let P(A₁)= 0.40 ,P(B₁ ∣ A₁)= 0.60 and P(B₁ ∣ A₂)= 0.70 -What is P(A₂ ∣ B₁)?

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION: The joint probabilities shown in a table with two rows,A₁ and A₂,and two columns,B₁ and B₂ are as follows: P(A₁ ∩ B₁)= 0.10,P(A₁ ∩ B₂)= 0.30,P(A₂ ∩ B₁)= 0.05,P(A₂ ∩ B₂)= 0.55 -What is P(B₁)?