SOLUTION: The Internal Revenue Service is studying the category of charitable contributions. A sample of 36 returns is selected from young couples between the ages of 20 and 35 who had an ad
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Question 1040582: The Internal Revenue Service is studying the category of charitable contributions. A sample of 36 returns is selected from young couples between the ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 36 returns, 6 had charitable contributions of more than $1,000. Suppose 5 of these returns are selected for a comprehensive audit.
a You should use the hypergeometric distribution is appropriate. Because
b.
What is the probability exactly one of the five audited had a charitable deduction of more than $1,000? (Round your answer to 4 decimal places.)
Probability
c.
What is the probability at least one of the audited returns had a charitable contribution of more than $1,000? (Round your answer to 4 decimal places.)
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
You want to use a hypergeometric distribution because it is a discrete probability distribution giving the probability of k successes in n trials without replacement.
StatTrek Hypergeometric Calculator will save you a bunch of arithmetic.
John
My calculator said it, I believe it, that settles it
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