Question 1

The sample space refers to

Accepted Answer

A)  any particular experimental outcome. 
B)  the sample size minus one. 
C)  the set of all possible experimental outcomes. 
D)  an event. 
A)  any particular experimental outcome. 
B)  the sample size minus one. 
C)  the set of all possible experimental outcomes. 
D)  an event.

Question 2

Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female.The number of sample points in this experiment is

Accepted Answer

A)  2. 
B)  4. 
C)  6. 
D)  8. 
A)  2. 
B)  4. 
C)  6. 
D)  8.

Question 3

Each customer entering a department store will either buy or not buy some merchandise.An experiment consists of following 3 customers and determining whether or not they purchase any merchandise.The number of sample points in this experiment is

Accepted Answer

A)  2. 
B)  4. 
C)  6. 
D)  8. 
A)  2. 
B)  4. 
C)  6. 
D)  8.

Question 4

If X and Y are mutually exclusive events with P(A) = 0.295, P(B) = 0.32, then P(A | B) =

Accepted Answer

A)  0.0944. 
B)  0.6150. 
C)  1.0000. 
D)  0.0000. 
A)  0.0944. 
B)  0.6150. 
C)  1.0000. 
D)  0.0000.

Question 5

From nine cards numbered 1 through 9, two cards are drawn.Consider the selection and classification of the cards as odd or even as an experiment.How many sample points are there for this experiment?

Accepted Answer

A)  2 
B)  3 
C)  4 
D)  9 
A)  2 
B)  3 
C)  4 
D)  9

Question 6

Of five letters (A, B, C, D, and E), two letters are to be selected at random.How many possible are possible?

Accepted Answer

A)  20 
B)  7 
C)  5! 
D)  10 
A)  20 
B)  7 
C)  5! 
D)  10

Question 7

A lottery is conducted using three urns.Each urn contains chips numbered from 0 to 9.One chip is selected at random from each urn.The total number of sample points in the sample space is

Accepted Answer

A)  30. 
B)  100. 
C)  729. 
D)  1,000. 
A)  30. 
B)  100. 
C)  729. 
D)  1,000.

Question 8

If P(A) = 0.38, P(B) = 0.83, and P(A ) B) = 0.24; then P(A * B) =

Accepted Answer

A)  1.21. 
B)  .97. 
C)  .76. 
D) 1.45. 
A)  1.21. 
B)  .97. 
C)  .76. 
D) 1.45.

Question 9

The range of probability is

Accepted Answer

A)  0 to infinity. 
B)  minus infinity to plus infinity. 
C)  0 to 1. 
D)  -1 to 1. 
A)  0 to infinity. 
B)  minus infinity to plus infinity. 
C)  0 to 1. 
D)  -1 to 1.

Question 10

Assuming that each of the 52 cards in an ordinary deck has a probability of 1/52 of being drawn, what is the probability of drawing a black ace?

Accepted Answer

A)  1/52 
B)  2/52 
C)  3/52 
D)  4/52 
A)  1/52 
B)  2/52 
C)  3/52 
D)  4/52

Question 11

​A list of all possible outcomes of an experiment is called the

Accepted Answer

A)  ​sample space. 
B)  ​sample point. 
C)  ​event. 
D)  ​likelihood set. 
A)  ​sample space. 
B)  ​sample point. 
C)  ​event. 
D)  ​likelihood set.

Question 12

If A and B are independent events with P(A) = 0.4 and P(B) = 0.6, then P(A ∩ B) =

Accepted Answer

A)  0.76. 
B)  1.00. 
C)  0.24. 
D)  0.20. 
A)  0.76. 
B)  1.00. 
C)  0.24. 
D)  0.20.

Question 13

If P(A) = 0.62, P(B) = 0.56, and P(A * B) = 0.70, then P(B | A) =

Accepted Answer

A)  .4800. 
B)  .7742. 
C)  .9032. 
D)  .3472. 
A)  .4800. 
B)  .7742. 
C)  .9032. 
D)  .3472.

Question 14

The addition law is potentially helpful when we are interested in computing the probability of

Accepted Answer

A)  independent events 
B)  the intersection of two events 
C)  the union of two events 
D)  conditional events 
A)  independent events 
B)  the intersection of two events 
C)  the union of two events 
D)  conditional events

Question 15

The intersection of two mutually exclusive events

Accepted Answer

A)  can be any value between 0 to1. 
B)  must always be equal to 1. 
C)  must always be equal to 0. 
D)  can be any positive value. 
A)  can be any value between 0 to1. 
B)  must always be equal to 1. 
C)  must always be equal to 0. 
D)  can be any positive value.

Question 16

​The probability of an event is

Accepted Answer

A)  ​the sum of the probabilities of the sample points in the event. 
B)  ​the product of the probabilities of the sample points in the event. 
C)  ​the minimum of the probabilities of the sample points in the event. 
D)  ​the maximum of the probabilities of the sample points in the event. 
A)  ​the sum of the probabilities of the sample points in the event. 
B)  ​the product of the probabilities of the sample points in the event. 
C)  ​the minimum of the probabilities of the sample points in the event. 
D)  ​the maximum of the probabilities of the sample points in the event.

Question 17

An experiment consists of three steps.There are four possible results on the first step, three possible results on the second step, and two possible results on the third step.The total number of experimental outcomes is

Accepted Answer

A)  9. 
B)  14. 
C)  24. 
D)  36. 
A)  9. 
B)  14. 
C)  24. 
D)  36.

Question 18

A graphical method of representing the sample points of an experiment is a

Accepted Answer

A)  stacked bar chart. 
B)  dot plot. 
C)  stem-and-leaf display. 
D)  tree diagram. 
A)  stacked bar chart. 
B)  dot plot. 
C)  stem-and-leaf display. 
D)  tree diagram.

Question 19

If P(A) = 0.50, P(B) = 0.40 and P(A ∪ B) = 0.88, then P(B |A) =

Accepted Answer

A)  0.02. 
B)  0.03. 
C)  0.04. 
D)  0.05. 
A)  0.02. 
B)  0.03. 
C)  0.04. 
D)  0.05.

Question 20

If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A ∪ B) =

Accepted Answer

A)  0.65. 
B)  0.55. 
C)  0.10. 
D)  0.75. 
A)  0.65. 
B)  0.55. 
C)  0.10. 
D)  0.75.

The sample space refers to

Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female.The number of sample points in this experiment is

Each customer entering a department store will either buy or not buy some merchandise.An experiment consists of following 3 customers and determining whether or not they purchase any merchandise.The number of sample points in this experiment is

If X and Y are mutually exclusive events with P(A) = 0.295, P(B) = 0.32, then P(A | B) =

From nine cards numbered 1 through 9, two cards are drawn.Consider the selection and classification of the cards as odd or even as an experiment.How many sample points are there for this experiment?

Of five letters (A, B, C, D, and E), two letters are to be selected at random.How many possible are possible?

A lottery is conducted using three urns.Each urn contains chips numbered from 0 to 9.One chip is selected at random from each urn.The total number of sample points in the sample space is

If P(A) = 0.38, P(B) = 0.83, and P(A ) B) = 0.24; then P(A * B) =

The range of probability is

Assuming that each of the 52 cards in an ordinary deck has a probability of 1/52 of being drawn, what is the probability of drawing a black ace?

A list of all possible outcomes of an experiment is called the

If A and B are independent events with P(A) = 0.4 and P(B) = 0.6, then P(A ∩ B) =

If P(A) = 0.62, P(B) = 0.56, and P(A * B) = 0.70, then P(B | A) =

The addition law is potentially helpful when we are interested in computing the probability of

The intersection of two mutually exclusive events

The probability of an event is

An experiment consists of three steps.There are four possible results on the first step, three possible results on the second step, and two possible results on the third step.The total number of experimental outcomes is

A graphical method of representing the sample points of an experiment is a

If P(A) = 0.50, P(B) = 0.40 and P(A ∪ B) = 0.88, then P(B |A) =

If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A ∪ B) =

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

Exam 4: Introduction to Probability

The sample space refers to

Three applications for admission to a local university are checked, and it is determined whether each applicant is male or female.The number of sample points in this experiment is

Each customer entering a department store will either buy or not buy some merchandise.An experiment consists of following 3 customers and determining whether or not they purchase any merchandise.The number of sample points in this experiment is

If X and Y are mutually exclusive events with P(A) = 0.295, P(B) = 0.32, then P(A | B) =

From nine cards numbered 1 through 9, two cards are drawn.Consider the selection and classification of the cards as odd or even as an experiment.How many sample points are there for this experiment?

Of five letters (A, B, C, D, and E), two letters are to be selected at random.How many possible are possible?

A lottery is conducted using three urns.Each urn contains chips numbered from 0 to 9.One chip is selected at random from each urn.The total number of sample points in the sample space is

If P(A) = 0.38, P(B) = 0.83, and P(A ) B) = 0.24; then P(A * B) =

The range of probability is

Assuming that each of the 52 cards in an ordinary deck has a probability of 1/52 of being drawn, what is the probability of drawing a black ace?

​A list of all possible outcomes of an experiment is called the

If A and B are independent events with P(A) = 0.4 and P(B) = 0.6, then P(A ∩ B) =

If P(A) = 0.62, P(B) = 0.56, and P(A * B) = 0.70, then P(B | A) =

The addition law is potentially helpful when we are interested in computing the probability of

The intersection of two mutually exclusive events

​The probability of an event is

An experiment consists of three steps.There are four possible results on the first step, three possible results on the second step, and two possible results on the third step.The total number of experimental outcomes is

A graphical method of representing the sample points of an experiment is a

If P(A) = 0.50, P(B) = 0.40 and P(A ∪ B) = 0.88, then P(B |A) =

If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A ∪ B) =

Data and Statistics

Descriptive Statistics: Tabulargraphical

Descriptive Statistics: Numerical

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Inference About Means and Proportions With Two Populations

Inferences About Population Variances

Comparing Multiple Proportions, Test of Independence and Goodness of Fit

Experimental Design and Analysis of Variance

Simple Linear Regression

Multiple Regression

Filters

A list of all possible outcomes of an experiment is called the

The probability of an event is