Question 1

If PA) = 0.25, PA│Y) = 0.35, and PA│X) = 0.10, then events A and Y

Accepted Answer

A)  are independent 
B)  are dependent 
C)  could be either independent or dependent, depending on the value of Y 
D)  could be either independent or dependent, depending on the value of X 
A)  are independent 
B)  are dependent 
C)  could be either independent or dependent, depending on the value of Y 
D)  could be either independent or dependent, depending on the value of X

Question 2

The union of events A and B is the event containing

Accepted Answer

A)  all the sample points belonging to B or A 
B)  all the sample points belonging to A or B 
C)  all the sample points belonging to A or B or both 
D)  all the sample points belonging to A or B, but not both 
A)  all the sample points belonging to B or A 
B)  all the sample points belonging to A or B 
C)  all the sample points belonging to A or B or both 
D)  all the sample points belonging to A or B, but not both

Question 3

Seven movies are playing in town and you are planning to see 2 of them this weekend. How many selections would you have?

Accepted Answer

A)  14 
B)  2 
C)  21 
D)  12 
A)  14 
B)  2 
C)  21 
D)  12

Question 4

From a group of seven finalists to a contest, three individuals are to be selected for the first and second and third places. Determine the number of possible selections.

Accepted Answer

The answer of From a group of seven finalists to...

Question 5

If PA) = 0.48, PA ∪ B) = 0.82, and PB) = 0.54, then PA ∩ B) =

Accepted Answer

A)  0.3936 
B)  0.3400 
C)  0.2000 
D)  1.0200 
A)  0.3936 
B)  0.3400 
C)  0.2000 
D)  1.0200

Question 6

If A and B are independent events with PA) = 0.05 and PB) = 0.65, then PA | B) =

Accepted Answer

A)  0.05 
B)  0.0325 
C)  0.65 
D)  0.8 
A)  0.05 
B)  0.0325 
C)  0.65 
D)  0.8

Question 7

If a six sided die is rolled and a coin is tossed. What is the probability that the coin shows a head and the die shows a six?

Accepted Answer

A)  12 
B)  2/6 
C)  1/6 
D)  1/12 
A)  12 
B)  2/6 
C)  1/6 
D)  1/12

Question 8

If A and B are independent events with PA) = 0.38 and PB) = 0.55, then PA | B) =

Accepted Answer

A)  0.209 
B)  0.000 
C)  0.550 
D)  0.38 
A)  0.209 
B)  0.000 
C)  0.550 
D)  0.38

Question 9

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 10

A perfectly balanced coin is tossed 6 times and tails appears on all six tosses. Then, on the seventh trial

Accepted Answer

A)  tails can not appear 
B)  heads has a larger chance of appearing than tails 
C)  tails has a better chance of appearing than heads 
D)  None of these alternatives is correct. 
A)  tails can not appear 
B)  heads has a larger chance of appearing than tails 
C)  tails has a better chance of appearing than heads 
D)  None of these alternatives is correct.

Question 11

Since the sun must rise tomorrow, then the probability of the sun rising tomorrow is

Accepted Answer

A)  much larger than one 
B)  zero 
C)  infinity 
D)  None of these alternatives is correct. 
A)  much larger than one 
B)  zero 
C)  infinity 
D)  None of these alternatives is correct.

Question 12

A method of assigning probabilities based on historical data is called the

Accepted Answer

A)  classical method 
B)  subjective method 
C)  relative frequency method 
D)  historical method 
A)  classical method 
B)  subjective method 
C)  relative frequency method 
D)  historical method

Question 13

A six-sided die is tossed 3 times. The probability of observing three ones in a row is

Accepted Answer

A)  1/3 
B)  1/6 
C)  1/27 
D)  1/216 
A)  1/3 
B)  1/6 
C)  1/27 
D)  1/216

Question 14

An experiment consists of selecting a student body president, vice president, and a treasurer. All undergraduate students, freshmen through seniors, are eligible for the offices. How many sample points possible outcomes as to the classifications) exist?

Accepted Answer

A)  12 
B)  16 
C)  64 
D)  100 
A)  12 
B)  16 
C)  64 
D)  100

Question 15

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 16

Each individual outcome of an experiment is called

Accepted Answer

A)  the sample space 
B)  a sample point 
C)  an experiment 
D)  an individual 
A)  the sample space 
B)  a sample point 
C)  an experiment 
D)  an individual

Question 17

Assume a businessman has 7 suits and 8 ties. He is planning to take 3 suits and 2 ties with him on his next business trip. How many possibilities of selection does he have?

Accepted Answer

The answer of Assume a businessman has 7 suits and...

Question 18

Two events are mutually exclusive

Accepted Answer

A)  if their intersection is 1 
B)  if they have no sample points in common 
C)  if their intersection is 0.5 
D)  None of these alternatives is correct. 
A)  if their intersection is 1 
B)  if they have no sample points in common 
C)  if their intersection is 0.5 
D)  None of these alternatives is correct.

Question 19

The collection of all possible sample points in an experiment is

Accepted Answer

A)  the sample space 
B)  a sample point 
C)  an experiment 
D)  the population 
A)  the sample space 
B)  a sample point 
C)  an experiment 
D)  the population

Question 20

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

If PA) = 0.25, PA│Y) = 0.35, and PA│X) = 0.10, then events A and Y

The union of events A and B is the event containing

Seven movies are playing in town and you are planning to see 2 of them this weekend. How many selections would you have?

From a group of seven finalists to a contest, three individuals are to be selected for the first and second and third places. Determine the number of possible selections.

If PA) = 0.48, PA ∪ B) = 0.82, and PB) = 0.54, then PA ∩ B) =

If A and B are independent events with PA) = 0.05 and PB) = 0.65, then PA | B) =

If a six sided die is rolled and a coin is tossed. What is the probability that the coin shows a head and the die shows a six?

If A and B are independent events with PA) = 0.38 and PB) = 0.55, then PA | 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?

A perfectly balanced coin is tossed 6 times and tails appears on all six tosses. Then, on the seventh trial

Since the sun must rise tomorrow, then the probability of the sun rising tomorrow is

A method of assigning probabilities based on historical data is called the

A six-sided die is tossed 3 times. The probability of observing three ones in a row is

An experiment consists of selecting a student body president, vice president, and a treasurer. All undergraduate students, freshmen through seniors, are eligible for the offices. How many sample points possible outcomes as to the classifications) exist?

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 individual outcome of an experiment is called

Assume a businessman has 7 suits and 8 ties. He is planning to take 3 suits and 2 ties with him on his next business trip. How many possibilities of selection does he have?

Two events are mutually exclusive

The collection of all possible sample points in an 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

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design, and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

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Exam 4: Introduction to Probability

If PA) = 0.25, PA│Y) = 0.35, and PA│X) = 0.10, then events A and Y

The union of events A and B is the event containing

Seven movies are playing in town and you are planning to see 2 of them this weekend. How many selections would you have?

From a group of seven finalists to a contest, three individuals are to be selected for the first and second and third places. Determine the number of possible selections.

If PA) = 0.48, PA ∪ B) = 0.82, and PB) = 0.54, then PA ∩ B) =

If A and B are independent events with PA) = 0.05 and PB) = 0.65, then PA | B) =

If a six sided die is rolled and a coin is tossed. What is the probability that the coin shows a head and the die shows a six?

If A and B are independent events with PA) = 0.38 and PB) = 0.55, then PA | 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?

A perfectly balanced coin is tossed 6 times and tails appears on all six tosses. Then, on the seventh trial

Since the sun must rise tomorrow, then the probability of the sun rising tomorrow is

A method of assigning probabilities based on historical data is called the

A six-sided die is tossed 3 times. The probability of observing three ones in a row is

An experiment consists of selecting a student body president, vice president, and a treasurer. All undergraduate students, freshmen through seniors, are eligible for the offices. How many sample points possible outcomes as to the classifications) exist?

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 individual outcome of an experiment is called

Assume a businessman has 7 suits and 8 ties. He is planning to take 3 suits and 2 ties with him on his next business trip. How many possibilities of selection does he have?

Two events are mutually exclusive

The collection of all possible sample points in an 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

Data and Statistics

Descriptive Statistics: Tabular and Graphical Displays

Descriptive Statistics: Numerical Measures

Discrete Probability Distributions

Continuous Probability Distributions

Sampling and Sampling Distributions

Interval Estimation

Hypothesis Tests

Comparisons Involving Means, Experimental Design, and Analysis of Variance

Comparisons Involving Proportions and a Test of Independence

Simple Linear Regression

Multiple Regression

Filters