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Chapter 6: Q.28 (page 356)

What鈥檚 the expected number of cars in a randomly selected American household?

(a) Between 0and 5

(b) 1.00

(c) 1.75

(d) 1.84

(e) 2.00

Short Answer

Expert verified

The expected number of cars in a randomly selected American household .The correct option is (C) 1.75.

Step by step solution

01

Given Information

The probability model if we ignore the few households that own more than

5cars.

02

Explanation

The expected value is calculated by multiplying each possibility by its probability:

渭=鈭�xP(x)=0脳0.09+1脳0.36+2脳0.35+3脳0.13+4脳0.05+5脳0.02=1.75

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Most popular questions from this chapter

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