statistic question

The Internal Revenue Service is studying the category of charitable contributions. A sample of 32 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 32 returns, 7 had charitable contributions ofmore than $1,000. Suppose 6 of these returns are selected for a comprehensive audit. a. Explain why the hypergeometric distribution is appropriate. Because 0 you are sampling a small population without replacement. 0 you are sampling a small population with replacement. 0 you are sampling a large population without replacement. b. What is the probability exactly one of the six audited had a charitable deduction of more than $1,000? {Round your answer to 4 decimal places.) -:| c. What is the probability at least one ofthe audited returns had a charitable contribution of more than $1,000? {Round your answer to 4 decimal places! -:|