# Probabilities, Unit 3 Lesson 6 Assignment help

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### Question Description

Use the chart to answer the following probability questions:

male 51 39 27 19

Female 47 45 22 20

1) What are the totals for the following?

a) Males

b) Females

c) Very Easy to Follow

d) Average to Follow

e) Very Difficult to Follow

f) Impossible to Follow

g) Total number of people interviewed

2) One of these people is randomly selected. Find the probability that this individual is NOT male?

3) One of these people is randomly selected. If it is known that this person found the instructions very difficult to follow, find the probability that this person is male.

4) One of these people is randomly selected. If it is known that this person is male find the probability that this found the instructions very difficult to follow.

5) One of these people is randomly selected. If it is known that this person is female find the probability that this found the instructions very easy to follow.

6) Find the probability that a randomly selected person found the directions average to follow.

The question, "Do you smoke?" was asked of 100 people. Results are shown in the table.

Yes No Total

Male 19 41 60

Female 12 28 40

Total 31 69 100

7) Find the probability that a randomly selected person was male.

8) Find the probability that a randomly selected does NOT smoke.

9) Find the probability that a randomly selected person does not smoke if it is known that they are male.

10.) Find the probability that a randomly selected person is female if it is known they smoke.

11) Suppose the probability that tomorrow will be a snow day is .55. Suppose the probability that tomorrow is a snow day AND it is Friday is .25. What is the probability that tomorrow is Friday, if you know tomorrow is a snow day?

mickeygabz
School: Purdue University

See attached

Use the chart to answer the following probability questions:
male 51 39 27 19
Female 47 45 22 20
1) What are the totals for the following?
Very
easy

male
female
TOTAL

average

51
47
98

39
45
84

Very
difficult

impossible

27
22
49

19
20
39

TOTAL
136
134
270

a) Males
136
b) Females
134
c) Very Easy to Follow
98
d) Average to Follow
84
e) Very Difficult to Follow
49
f)

Impossible to Follow
39

g) Total number of people interviewed
270
2) One of these people is randomly s...

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