Question 1

When applying the special rule of addition for mutually exclusive events, the joint probability is:

Accepted Answer

A)  1 
B)  .5 
C)  0 
D)  0.25 
E)  unknown 
A)  1 
B)  .5 
C)  0 
D)  0.25 
E)  unknown

Question 2

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 a salesperson selected at random has above average sales ability and is
An excellent potential for advancement?

Accepted Answer

A)  0.20 
B)  0.50 
C)  0.27 
D)  0.75 
A)  0.20 
B)  0.50 
C)  0.27 
D)  0.75

Question 3

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 not permitted, how many different units can be decorated?

Accepted Answer

A)  360 
B)  25 
C)  125 
D)  1,296 
A)  360 
B)  25 
C)  125 
D)  1,296

Question 4

i. An illustration of an experiment is turning the ignition key of an automobile as it comes off the
Assembly line to determine whether or not the engine will start.
ii. If there are 'm' ways of doing one thing and 'n' ways of doing another thing, the multiplication
Formula states that there are (m)*(n) ways of doing both.
iii. A permutation is an arrangement of a set of objects in which there is an order from the ﬁrst
Through the last.

Accepted Answer

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

Question 5

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that
Some packages were underweight and some were overweight, but most of them had satisfactory
Weight.  
What is the probability of selecting and ﬁnding that all three of them are satisfactory?

Accepted Answer

A)  0.900 
B)  0.810 
C)  0.729 
D)  0.075 
A)  0.900 
B)  0.810 
C)  0.729 
D)  0.075

Question 6

A visual means useful in calculating joint and conditional probability is

Accepted Answer

A)  a tree diagram. 
B)  a Venn diagram. 
C)  a histogram. 
D)  an inferential statistics. 
A)  a tree diagram. 
B)  a Venn diagram. 
C)  a histogram. 
D)  an inferential statistics.

Question 7

Given the tree diagram below, what is the probability that your chosen meal includes chocolate
Cake?

Accepted Answer

A)  4/12 
B)  6/12 
C)  7/10 
D)  8/10 
A)  4/12 
B)  6/12 
C)  7/10 
D)  8/10

Question 8

The numbers 0 through 9 are to be used in code groups of four to identify an item of clothing. Code
1083 might identify a blue blouse, size medium. The code group 2031 might identify a pair of pants,
Size 18, and so on. Repetitions of numbers are not permitted, i.e., the same number cannot be used
More than once in a total sequence. As examples, 2256, 2562 or 5559 would not be permitted.
How many different code groups can be designed?

Accepted Answer

A)  5,040 
B)  620 
C)  10,200 
D)  120 
A)  5,040 
B)  620 
C)  10,200 
D)  120

Question 9

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 a supervisor and in production?

Accepted Answer

A)  0.00 
B)  0.06 
C)  0.15 
D)  0.21 
A)  0.00 
B)  0.06 
C)  0.15 
D)  0.21

Question 10

A study of 200 stamping ﬁrms revealed these incomes after taxes:   What is the probability that a particular ﬁrm selected has $1 million or more in income after taxes?

Accepted Answer

A)  0.00 
B)  0.25 
C)  0.49 
D)  0.51 
A)  0.00 
B)  0.25 
C)  0.49 
D)  0.51

Question 11

The result of a particular experiment is called a(n)

Accepted Answer

A)  observation. 
B)  conditional probability. 
C)  event. 
D)  outcome. 
A)  observation. 
B)  conditional probability. 
C)  event. 
D)  outcome.

Question 12

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 are late?

Accepted Answer

A)  0.729 
B)  0.810 
C)  0.270 
D)  0.271 
E)  0.001 
A)  0.729 
B)  0.810 
C)  0.270 
D)  0.271 
E)  0.001

Question 13

i. The probability of an event, based on a classical approach, is deﬁned as the number of favourable
Outcomes divided by the total number of possible outcomes.
ii. If among several events only one can occur at a time, we refer to these events as being mutually
Exclusive events.
iii. The probability of rolling a 3 or 2 on a single die is an example of conditional probability.

Accepted Answer

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

Question 14

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that
Some packages were underweight and some were overweight, but most of them had satisfactory
Weight.  
What is the probability of selecting and ﬁnding that all three of them are overweight?

Accepted Answer

A)  0.0000156 
B)  0.0004218 
C)  0.0000001 
D)  0.075 
A)  0.0000156 
B)  0.0004218 
C)  0.0000001 
D)  0.075

Question 15

Considering the chart below, what is the probability that if you select one person at random that
They have committed a violent crime and were at least 20 years of age?

Accepted Answer

A)  36.7% 
B)  18% 
C)  26% 
D)  27.3% 
A)  36.7% 
B)  18% 
C)  26% 
D)  27.3%

Question 16

Type of Attack   Given that an assault victim is selected, what is the likelihood that the criminal is a stranger?

Accepted Answer

A)  757/2000 
B)  1787/2000 
C)  757/1426 
D)  1426/2000 
A)  757/2000 
B)  1787/2000 
C)  757/1426 
D)  1426/2000

Question 17

Considering the chart below, what is the probability that if you select one person at random that
They have committed a violent crime and were under 20 or over 40 years of age?

Accepted Answer

A)  18.01% 
B)  56.23% 
C)  50.00% 
D)  9.3% 
A)  18.01% 
B)  56.23% 
C)  50.00% 
D)  9.3%

Question 18

Considering the chart below, what is the probability that if you select one person at random that
They have committed a violent crime?

Accepted Answer

A)  54.7% 
B)  45.3% 
C)  36.7% 
D)  53.3% 
A)  54.7% 
B)  45.3% 
C)  36.7% 
D)  53.3%

Question 19

i. A probability is usually expressed as a decimal, such as 0.70 or 0.27, but it may be given as a
Fraction, such as 7/10 or 27/100.
ii. The closer a probability is to 0, the more likely that an event will not happen.
iii. The closer the probability is to 1.00, the more likely an event will happen.

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)  (ii) and, (iii) are correct statements but not (i). 
E)  (i), (ii) and (iii) are all false statements. 
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)  (ii) and, (iii) are correct statements but not (i). 
E)  (i), (ii) and (iii) are all false statements.

Question 20

An insurance company has collected the following data on the gender and marital status of 400
Customers.  
Suppose that a customer is selected at random. Find the probability that the customer selected is
Married if the customer is male.

Accepted Answer

A)  125/240 
B)  175/400 
C)  125/175 
D)  175/240 
A)  125/240 
B)  175/400 
C)  125/175 
D)  175/240

When applying the special rule of addition for mutually exclusive events, the joint probability is:

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that Some packages were underweight and some were overweight, but most of them had satisfactory Weight. What is the probability of selecting and ﬁnding that all three of them are satisfactory?

A visual means useful in calculating joint and conditional probability is

Given the tree diagram below, what is the probability that your chosen meal includes chocolate Cake?

A study of 200 stamping ﬁrms revealed these incomes after taxes: What is the probability that a particular ﬁrm selected has $1 million or more in income after taxes?

The result of a particular experiment is called a(n)

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 are late?

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that Some packages were underweight and some were overweight, but most of them had satisfactory Weight. What is the probability of selecting and ﬁnding that all three of them are overweight?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime and were at least 20 years of age?

Type of Attack Given that an assault victim is selected, what is the likelihood that the criminal is a stranger?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime and were under 20 or over 40 years of age?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime?

i. A probability is usually expressed as a decimal, such as 0.70 or 0.27, but it may be given as a Fraction, such as 7/10 or 27/100. ii. The closer a probability is to 0, the more likely that an event will not happen. iii. The closer the probability is to 1.00, the more likely an event will happen.

An insurance company has collected the following data on the gender and marital status of 400 Customers. Suppose that a customer is selected at random. Find the probability that the customer selected is Married if the customer is male.

What Is Statistics

Describing Data: Frequencydistributions and Graphic Presentation

Describing Data: Numerical Measures

A Sulvey of Probability Concepts

Discrete Probability Distributions

Continuous Probabilitydistributions

Sampling Methods and the Central Umit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Chi-Square Applications

Decision Making and Payoff Tables in Investment Scenarios

Filters

Exam 4: Describing Data: Displaying and Exploring Pata

When applying the special rule of addition for mutually exclusive events, the joint probability is:

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that Some packages were underweight and some were overweight, but most of them had satisfactory Weight. What is the probability of selecting and ﬁnding that all three of them are satisfactory?

A visual means useful in calculating joint and conditional probability is

Given the tree diagram below, what is the probability that your chosen meal includes chocolate Cake?

A study of 200 stamping ﬁrms revealed these incomes after taxes: What is the probability that a particular ﬁrm selected has $1 million or more in income after taxes?

The result of a particular experiment is called a(n)

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 are late?

An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that Some packages were underweight and some were overweight, but most of them had satisfactory Weight. What is the probability of selecting and ﬁnding that all three of them are overweight?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime and were at least 20 years of age?

Type of Attack Given that an assault victim is selected, what is the likelihood that the criminal is a stranger?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime and were under 20 or over 40 years of age?

Considering the chart below, what is the probability that if you select one person at random that They have committed a violent crime?

i. A probability is usually expressed as a decimal, such as 0.70 or 0.27, but it may be given as a Fraction, such as 7/10 or 27/100. ii. The closer a probability is to 0, the more likely that an event will not happen. iii. The closer the probability is to 1.00, the more likely an event will happen.

An insurance company has collected the following data on the gender and marital status of 400 Customers. Suppose that a customer is selected at random. Find the probability that the customer selected is Married if the customer is male.

What Is Statistics

Describing Data: Frequencydistributions and Graphic Presentation

Describing Data: Numerical Measures

A Sulvey of Probability Concepts

Discrete Probability Distributions

Continuous Probabilitydistributions

Sampling Methods and the Central Umit Theorem

Estimation and Confidence Intervals

One-Sample Tests of Hypothesis

Two Sample Tests of Hypothesis

Analysis of Variance

Linear Regression and Correlation

Multiple Regression and Correlation Analysis

Chi-Square Applications

Decision Making and Payoff Tables in Investment Scenarios

Filters