1. The organizer of a television show must select 5 people to participate in the

Question

1. The organizer of a television show must select 5 people to participate in the show. The participants will be selected from a list of 25 people who have written in to the show. How many different 5- person participants are possible?

2.In a study of chocolate preference amoung chocolate lovers, 432 chocolate lovers said they prefer See's Candy and 324 said they prefer Godiva. Estimate the probabilty that a randomly selected chocolate lover will prefer See's Candy?

3. Let the random variable x represent the number of girls in a family of ten children.

A. write down the binomial-Distribution formula for this probabilty distribution p(x).

B. Find the mean and standard deviation of x ( you need not use part a)

Explanation / Answer

1) TOTAL WE HAVE 25 PEOPLE

5 TO BE SELECTED

THE TOTAL NUMBER OF WAYS IN WHICH THIS CAN BE DONE = 25C5 = 25!/(20!*5!) = 53130

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