math 18 1379983 2
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math 18
Question 1
Frequently |
Occasionally |
Not at All |
Total |
|
Male |
221 |
456 |
795 |
1472 |
Female |
207 |
430 |
741 |
1378 |
Total |
428 |
886 |
1536 |
2850 |
Question 3
In a sample of 100 auto parts, 12 are defective. If three parts are selected without replacement, find the probability that all three parts are defective. Find answer in reduced fraction form.
Question 4
The table shows the number of male and female students enrolled in nursing at a university. A student is selected at random. Find the probability that the student is a male or a nursing student.
Nursing Majors |
Non-Nursing Majors |
Total |
|
Males |
95 |
1015 |
1110 |
Females |
700 |
1727 |
2427 |
Total |
795 |
2742 |
3537 |
Question 5
The table shows the results of a survey in which 90 dog owners were asked how much they have spent in the last year for their dog’s health care, and whether their dogs were purebred or mixed breeds.
|
Type of Dog |
|||
Purebred |
Mixed Breed |
Total |
||
Health Care |
Less than $100 |
19 |
21 |
40 |
$100 or more |
35 |
15 |
50 |
|
Total |
54 |
36 |
90 |
Given that a randomly selected dog owner spent less than $100, the probability that the dog was a mixed breed is [x1]. Write answer rounded to three decimal places.
Question 8
Write your answer here as a percent. [x1]
(I put in Attachments)
Question 9
The number of responses to a survey are shown in the Pareto chart. The survey asked 1005 U.S. adults what they feel is the biggest problem with movies. Each person gave one response. Find the probability that a randomly selected person from the sample feels the biggest problem with movies is not both that movies have too much violence or that the tickets cost too much. This means that you are looking for the adults who did not say these two responses. Answer should be rounded to three decimal places.
( I put in Attachments)
Question 10
You select a card from a standard deck of 52 playing cards. Find the probability that the card is a 4 or an ace.
Write your answer here in reduced fraction form. For example: write 3/4 for the fraction three fourths. [x1]
Are these two events mutually exclusive? Answer yes or no. [x2]
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