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Teaching Since: | Jul 2017 |
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Questions Answered: | 5023 |
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The table below shows the results of a survey that asked 2883 people whether they are involved in any type of charity work. A person is selected at random from the sample. Complete parts​ (a) through​ (e).
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Frequently   
Occasionally
Not at all
Total
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Male
228
459
798
1485
Female
207
450
741
1398
Total
435
909
1539
2883
​(a) Find the probability that the person is frequently or occasionally involved in charity work.
Upper P left parenthesis being frequently involved or being occasionally involved right parenthesis equals nothing
​(Round to the nearest thousandth as​ needed.)
​(b) Find the probability that the person is female or not involved in charity work at all.
Upper P left parenthesis being female or not being involved right parenthesis equals nothing
​(Round to the nearest thousandth as​ needed.)
​(c) Find the probability that the person is male or frequently involved in charity work.
Upper P left parenthesis being male or being frequently involved right parenthesis equals nothing
​(Round to the nearest thousandth as​ needed.)
​(d) Find the probability that the person is female or not frequently involved in charity work.
Upper P left parenthesis being female or not being frequently involved right parenthesis equals nothing
​(Round to the nearest thousandth as​ needed.)
​(e) Are the events​ "being female" and​ "being frequently involved in charity​ work" mutually​ exclusive? Explain.
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A.
​No, because 207
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females are frequently involved in charity work.
B.
​Yes, because no females are frequently involved in charity work.
C.
​No, because no females are frequently involved in charity work.
D.
​Yes, because 207
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females are frequently involved in charity work.
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Click to select your answer(s).
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