Question 1

A survey of 500 top Canadian companies reported what the companies' hiring outlook was for the
Next 18 months as well as the general company outlook for the economy over the same period of
Time. 
Given that a randomly selected company plans to add jobs during the next 18 months, what is the
Probability that they have an unfavourable outlook for the economy?

Accepted Answer

A)  325/500 
B)  100/175 
C)  175/500 
D)  100/165 
E)  15/165

Question 2

(i. A particular result of an experiment is called a(n) outcome.
(ii. When the occurrence of one event does not affect the occurrence of the other event, the two
Events are independent.
(iii) If the order of a set of objects is important, it is called combination.

Accepted Answer

A)  (i), (ii) and (iii) are all correct statements 
B)  (i) is a correct statement but not (ii) or (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (i) and, (ii) are correct statements but not (iii). 
E)  (i), (ii) and (iii) are all false statements.

Question 3

(i. A new computer game has been developed and its market potential is to be tested by 80 veteran
Game players. If sixty players liked the game, the probability that veteran game players will like the
New computer game is 3/4 or 0.75.
(ii. A probability that is based on someone's opinion, guess or hunch is subjective.
(iii) The probability that a one-spot or a two-spot or a six-spot will appear face up on the throw of
One die is 1/2 or 0.5.

Accepted Answer

A)  (i), (ii) and (iii) are all correct statements 
B)  (i) is a correct statement but not (ii) or (iii). 
C)  (i) and, (iii) are correct statements but not (ii). 
D)  (i) and, (ii) are correct statements but not (iii). 
E)  (i), (ii) and (iii) are all false statements.

Question 4

Considering the chart below, what is the probability that if you select one person at random that
They committed a nonviolent crime, given that they were under 20 years of age?

Accepted Answer

A)  74.00% 
B)  69.2% 
C)  30.8% 
D)  9.3%

Question 5

A group of employees of Unique Services is to be surveyed with respect to a new pension plan. In-
Depth interviews are to be conducted with each employee selected in the sample. The employees
Are classiﬁed as follows. 
What is the probability that the ﬁrst person selected is either in maintenance or in secretarial?

Accepted Answer

A)  0.200 
B)  0.015 
C)  0.059 
D)  0.001

Question 6

Type of Attack  If two different subjects are randomly selected, ﬁnd the probability that they were both robbed.

Accepted Answer

A)  27.5% 
B)  25.5% 
C)  55% 
D)  6.4%

Question 7

According to which classiﬁcation or type of probability are the events equally likely?

Accepted Answer

A)  Classical 
B)  Empirical 
C)  Subjective 
D)  Mutually exclusive

Question 8

Information on the 30 Major League Baseball teams for the 2013 season has been summarized
Based on game attendance. What is the probability that if a team is selected at random, it had a
Winning season?

Accepted Answer

A)  18/30 
B)  6/11 
C)  6/30 
D)  12/30

Question 9

If two events are independent, then their joint probability is

Accepted Answer

A)  computed with the special rule of addition 
B)  computed with the special rule of multiplication 
C)  computed with the general rule of multiplication 
D)  computed with Bayes theorem

Question 10

Six basic colours are to be used in decorating a new condominium. They are to be applied to a unit
In groups of four colours. One unit might have gold as the principal colour, blue as a complementary
Colour, red as the accent colour and touches of white. Another unit might have blue as the principal
Colour, white as the complimentary colour, gold as the accent colour and touches of red. If
Repetitions are permitted, how many different units can be decorated?

Accepted Answer

A)  7,825 
B)  24 
C)  125 
D)  1,296

Question 11

The following distribution table represents preferences for two types of cereals by 2000 boys and
Girls. 
Find the probability that an individual selected at random will be a boy and prefer Fruity cereal.

Accepted Answer

A)  500/1,000 
B)  500/2,000 
C)  1,200/2,000 
D)  500/1,200

Question 12

Type of Attack  If one person is randomly selected, ﬁnd the probability that they were victimized by a stranger.

Accepted Answer

A)  389/1166 
B)  389/834 
C)  1166/2000 
D)  1234/2000

Question 13

A study was done of the 377 vehicles parked in the college parking lot last Friday. The results
Follow. 
What is the probability of ﬁnding a sports car, given that you are looking for a red car?

Accepted Answer

A)  15/47 
B)  15/121 
C)  15/377 
D)  153/377

Question 14

Each salesperson in a large department store chain is rated with respect to sales potential for
Advancement. These traits for the 500 salespeople were cross-classiﬁed into the following table: 
What is the probability that the selected salesperson has above average sales ability?

Accepted Answer

A)  50/500 
B)  150/500 
C)  300/500 
D)  16/50 
E)  154/500

Question 15

Which approach to probability is exempliﬁed by the following formula?

Accepted Answer

A)  Classical approach 
B)  Empirical approach 
C)  Subjective approach

Question 16

You take a trip by air that involves three independent ﬂights. If there is a 90 percent chance each
Speciﬁc leg of the trip is done on time, what is the probability all three ﬂights arrive on time?

Accepted Answer

A)  0.729 
B)  0.810 
C)  0.270 
D)  0.271 
E)  0.000

Question 17

A survey of 500 top Canadian companies reported what the companies' hiring outlook was for the
Next 18 months as well as the general company outlook for the economy over the same period of
Time. 
What is the probability that a randomly selected company has an unfavourable forecast for the
Economy for the next 18 months?

Accepted Answer

A)  25/500 
B)  325/500 
C)  65/500 
D)  175/500

Question 18

Given the tree diagram below, how many "meals" included vegetable lasagne?

Accepted Answer

A)  8 
B)  10 
C)  7 
D)  4

Exam 4: Describing Data: Displaying and Exploring Pata

(i. A particular result of an experiment is called a(n) outcome. (ii. When the occurrence of one event does not affect the occurrence of the other event, the two Events are independent. (iii) If the order of a set of objects is important, it is called combination.

Considering the chart below, what is the probability that if you select one person at random that They committed a nonviolent crime, given that they were under 20 years of age?

Type of Attack If two different subjects are randomly selected, ﬁnd the probability that they were both robbed.

According to which classiﬁcation or type of probability are the events equally likely?

Information on the 30 Major League Baseball teams for the 2013 season has been summarized Based on game attendance. What is the probability that if a team is selected at random, it had a Winning season?

If two events are independent, then their joint probability is

The following distribution table represents preferences for two types of cereals by 2000 boys and Girls. Find the probability that an individual selected at random will be a boy and prefer Fruity cereal.

Type of Attack If one person is randomly selected, ﬁnd the probability that they were victimized by a stranger.

A study was done of the 377 vehicles parked in the college parking lot last Friday. The results Follow. What is the probability of ﬁnding a sports car, given that you are looking for a red car?

Each salesperson in a large department store chain is rated with respect to sales potential for Advancement. These traits for the 500 salespeople were cross-classiﬁed into the following table: What is the probability that the selected salesperson has above average sales ability?

Which approach to probability is exempliﬁed by the following formula?

You take a trip by air that involves three independent ﬂights. If there is a 90 percent chance each Speciﬁc leg of the trip is done on time, what is the probability all three ﬂights arrive on time?

Given the tree diagram below, how many "meals" included vegetable lasagne?