MULTIPLE CHOICE. Choose the one
alternative that best completes the statement or answers the question.
Find the indicated probability.
1) On a multiple
choice test, each question has possible
answers. If you make a random guess on the first question, what is the
probability that you are correct?
A) 0 B)
1 C) 
D)
2) A bag contains red marbles, blue marbles, and green marbles. If a marble is randomly
selected from the bag, what is the probability that it is blue?
A) B) 
C) 
D) 
3) A class consists
of women and men. If a student is randomly selected, what
is the probability that the student is a woman?
A) B) C) D)
Answer the question, considering an event to be "unusual" if
its probability is less than or equal to 0.05.
4) Is it
"unusual" to get when a pair
of dice is rolled?
A) Yes B)
No
5) A multiple choice
question has possible answers, only one
of which is correct. Is it
"unusual" to answer a question correctly if a random guess is made?
A) No B)
Yes
6) Assume that a
study of 300 randomly selected school bus routes showed that arrived on time. Is it "unusual" for a school bus to
arrive late?
A) No B)
Yes
From the information provided, create the sample space of possible
outcomes.
7) Flip a coin three
times.
A) HTT THT HTH HHH TTH TTT
B) HHH HTT HTH TTT HTT THH HHT THT
C) HHH TTT THT HTH HHT TTH HTH
D) HHH HHT HTH HTT THH THT TTH TTT
Answer the question.
8) Find the odds against
correctly guessing the answer to a multiple choice question with possible answers.
A) : B) : 1 C) : 1 D) :
Determine whether the events are mutally exclusive.
9) Get a full time day job as a teller with a bank.
Get a full time day job as a cashier at a store.
A) Yes B)
No
Find the indicated probability.
10) Find P(A), given
that P(A) = .
A) B) C) D) 0
11) The probability
that Luis will pass his statistics test is . Find the probability that he will
fail his statistics test.
A) B) C) D)
12) The table below describes the smoking habits of a group of asthma sufferers.
If one of the 
people is randomly selected, find the
probability of getting someone who is a regular or heavy smoker.
A) 
B) 
C) 
D) 
13) The table below describes the smoking habits of a group of asthma sufferers.
If one of the people
is randomly selected, find the probability that the person is a man or a heavy
smoker.
A) 
B) 
C) 
D) 
14) A sample of 100 wood and
100 graphite tennis rackets are taken from the warehouse. If 
wood and 
graphite are defective and one racket is
randomly selected from the sample, find the probability that the racket is wood
or defective.
A) 
B) 
C) 
D) There is insufficient information to answer the question.
Is Event B dependent or independent of Event A?
15) A: A Chicagoan visits New York on vacation.
B: He visits Central Park.
A) Dependent
B) Independent
Find the indicated probability.
16) A bin contains 
light bulbs of which 
are defective. If 
light bulbs are randomly selected from the bin
with replacement, find the probability that all the bulbs selected are good
ones.
A) 
B) 
C) 
D) 
17) Find the
probability of correctly answering the first 
questions on a multiple choice test if random
guesses are made and each question has possible answers.
A) 
B) 
C) 
D) 
18) Among the
contestants in a competition are 
women and 
men. If 5 winners are randomly selected, what
is the probability that they are all men?
A) 
B) 
C) 
D) 
19) Find the
probability that 
randomly selected people all have the same
birthday. Ignore leap years.
A) 
B) 
C) 
D) 
20) A study
conducted at a certain college shows that 
%
of the school's graduates find a job in their chosen field within a year after
graduation. Find the probability that 
randomly selected graduates all find jobs in
their chosen field within a year of graduating.
A) 
B) 
C) 
D) 
MULTIPLE CHOICE. Choose the one
alternative that best completes the statement or answers the question.
1) C
ID: STAT8T
3.2.1-2
Page Ref:
115, 118-120
Objective:
(3.2) Find Probability Using Classical Approach
2) D
ID: STAT8T
3.2.1-4
Page Ref:
115, 118-120
Objective:
(3.2) Find Probability Using Classical Approach
3) D
ID: STAT8T
3.2.1-7
Page Ref:
115, 118-120
Objective:
(3.2) Find Probability Using Classical Approach
4) B
ID: STAT8T
3.2.2-2
Page Ref:
122-123
Objective:
(3.2) Determine if Event is Unusual (Y/N)
5) A
ID: STAT8T
3.2.2-3
Page Ref:
122-123
Objective:
(3.2) Determine if Event is Unusual (Y/N)
6) A
ID: STAT8T
3.2.2-4
Page Ref:
122-123
Objective:
(3.2) Determine if Event is Unusual (Y/N)
7) D
ID: STAT8T
3.2.4-2
Page Ref:
114-115
Objective:
(3.2) List Possible Outcomes
8) B
ID: STAT8T
3.2.5-3
Page Ref:
121-122
Objective:
(3.2) Find Odds
9) A
ID: STAT8T
3.3.1-5
Page Ref:
128
Objective:
(3.3) Determine If Events are Mutually Exclusive (Y/N)
10) C
ID: STAT8T
3.3.2-2
Page Ref:
131-132
Objective:
(3.3) Find Probability of Complement
11) B
ID: STAT8T
3.3.2-4
Page Ref:
131-132
Objective:
(3.3) Find Probability of Complement
12) C
ID: STAT8T
3.3.4-4
Page Ref:
129-131
Objective:
(3.3) Use Addition Rule (Mutually Exclusive Events)
13) B
ID: STAT8T
3.3.3-3
Page Ref:
128-131
Objective:
(3.3) Use Addition Rule (Events Not Mutually Exclusive)
14) B
ID: STAT8T
3.3.3-4
Page Ref:
128-131
Objective:
(3.3) Use Addition Rule (Events Not Mutually Exclusive)
15) A
ID: STAT8T
3.4.1-3
Page Ref:
137-138
Objective:
(3.4) Classify Events as Independent or Dependent
16) A
ID: STAT8T
3.4.2-5
Page Ref:
138-140
Objective:
(3.4) Use Multiplication Rule (Independent Events)
17) C
ID: STAT8T
3.4.2-2
Page Ref:
138-140
Objective:
(3.4) Use Multiplication Rule (Independent Events)
18) C
ID: STAT8T
3.4.3-5
Page Ref:
139
Objective:
(3.4) Use Addition Rule (Mutually Exclusive Events)
19) B
ID: STAT8T
3.4.2-9
Page Ref:
138-140
Objective:
(3.4) Use Multiplication Rule (Independent Events)
20) C
ID: STAT9T
3.4.2-8
Page Ref:
143-145
Objective:
(3.4) Use Multiplication Rule (Independent Events)