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Answered: - If the occurrence or non occurrence of one event does not affect


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If the occurrence or non occurrence of one event does not affect the occurrence or non

 

occurrence of another event, the two events are ________________________.

 


 

collectively

 

exhaustive

 


 

non

 

interacting

 


 

mutually

 

exclusive

 


 

independen

 

t

 


 

complementary

 


 

__________________________________________________________________________

 


 

How many elementary events are in the sample space of the experiment of rolling a pair of 6faced dice?

 


 

0

 


 

6

 


 

12

 


 

36

 


 

__________________________________________________________________________

 

Sixty percent of all technical assistants would like to have a PC. Fifty percent of all technical

 

assistants would like to have MAC. Twenty percent of all technical assistants would like to have

 

both. If a technical assistant is randomly selected, what is the probability that she would like to

 

have a PC or a MAC?

 


 

0.33

 


 

1.00

 


 

1.10

 


 

0.90

 


 

0.95

 


 

__________________________________________________________________________

 

Belinda Bose is reviewing a newly proposed advertising campaign. Based on her 15 years

 

experience, she believes the campaign has a 75% chance of significantly increasing brand

 

name recognition of the product. This is an example of assigning probabilities using the

 

________________ method.

 


 

subjective

 

probability

 


 

relative

 

frequency

 


 

classical

 

probability

 


 

a priori probability

 


 

a posterior probability

 


 

__________________________________________________________________________

 

Let A be the event that a student is enrolled in an accounting course, and let S be the event

 

that a student is enrolled in a statistics course. It is known that 30% of all students are enrolled

 

in an accounting course and 40% of all students are enrolled in statistics. Included in these

 

numbers are 15% who are enrolled in both statistics and accounting. A student is randomly

 

selected, and it is found that the student is enrolled in accounting. What is the probability that

 

this student is also enrolled in statistics?

 


 

0.15

 


 

0.75

 


 

0.375

 


 

0.50

 


 

0.80

 


 

__________________________________________________________________________

 

Max Sandlin is exploring the characteristics of stock market investors. He found that sixty

 

percent of all investors have a net worth exceeding $1,000,000; 20% of all investors use an

 

online brokerage; and 10% of all investors a have net worth exceeding $1,000,000 and use an

 


 

online brokerage. An investor is selected randomly, and E is the event "net worth exceeds

 

$1,000,000" and O is the event "uses an online brokerage." P(O ? E) = _____________.

 


 

0.17

 


 

0.50

 


 

0.80

 


 

0.70

 


 

0.10

 


 

__________________________________________________________________________

 

Meagan Dubean manages a portfolio of 200 common stocks. Her staff classified the portfolio

 

stocks by 'industry sector' and 'investment objective.'

 

Investment Objective Industry Sector

 

Electronics Airlines Healthcare Total

 

Growth

 


 

100

 


 

10

 


 

40

 


 

150

 


 

Income

 


 

20

 


 

20

 


 

10

 


 

50

 


 

Total

 


 

120

 


 

30

 


 

50

 


 

200

 


 

If a stock is selected randomly from Meagan's portfolio, P (Growth) = _______.

 


 

0.50

 


 

0.83

 


 

0.67

 


 

0.75

 


 

0.90

 


 

__________________________________________________________________________

 


 

The number of different committees of 2 students that can be chosen from a group of 5

 

students is

 


 

20

 


 

2

 


 

5

 


 

10

 


 

1

 


 

__________________________________________________________________________

 


 

Suppose that 5% of all TVs made by some Company in 2010 are defective. If 2 of these TVs are

 

randomly selected what is the probability that both are defective?

 


 

0.95

 


 

0.0025

 


 

0.9025

 


 

0.0475

 


 

0.1

 


 

__________________________________________________________________________

 

It is known that 20% of all students in some large university are overweight, 20% exercise

 

regularly and 2% are overweight and exercise regularly. What is the probability that a

 

randomly selected student is overweight given that this student exercises regularly?

 


 

0.40

 


 

0.38

 


 

0.20

 


 

0.42

 


 

0.10

 


 

__________________________________________________________________________

 

An automobile dealer wishes to investigate the relation between the gender of the buyer and

 

type of vehicle purchased. Based on the joint probability table below that was developed from

 

the dealer?s records for the previous year, P (Female ? SUV) = _______.

 

Type of Vehicle Buyer Gender

 

Female Male Total

 

SUV

 

Not SUV

 

Total

 


 

.30

 


 

.40

 

.60

 


 

1.00

 


 

0.30

 


 

0.40

 


 

0.12

 


 

0.10

 


 

0.60

 


 

__________________________________________________________________________

 


 

Bayes? rule is used to revise the initial or prior probabilities based on new information and

 

convert them into __________.

 


 

certaintie

 

s

 


 

joint probabilities

 


 

subjective

 

probabilities

 


 

posterior

 

probabilities

 


 

__________________________________________________________________________

 

The speed at which a jet plane can fly is an example of _________.

 


 

neither discrete nor continuous random variable

 


 

both discrete and continuous random

 

variable

 


 

a continuous random

 

variable

 


 

a discrete random

 

variable

 


 

a

 

constant

 


 

 


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