1.Suppose that 65% of families in town own a computer. If 8 families are surveyed at random, what is the probability that exactly 3 own a computer? Round your answer to 3 decimal places.   2.Suppose that 65% of families in town own a computer. If 8 families are surveyed at random, what is the probability that all 8 own a computer? Round your answer to 3 decimal places.   3.Suppose that 65% of families in town own a computer. Find the expected value of families who own a computer.

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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1.Suppose that 65% of families in town own a computer. If 8 families are surveyed at random, what is the probability that exactly 3 own a computer? Round your answer to 3 decimal places.

 

2.Suppose that 65% of families in town own a computer. If 8 families are surveyed at random, what is the probability that all 8 own a computer? Round your answer to 3 decimal places.

 

3.Suppose that 65% of families in town own a computer. Find the expected value of families who own a computer.

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