The sales of Lexus automobiles in the Detroit area follow | StudySoup

Textbook Solutions for Basic Statistics for Business and Economics

Chapter 6 Problem 49E

Question

Problem 49E

The sales of Lexus automobiles in the Detroit area follow a Poisson distribution with a mean of 3 per day.

a. What is the probability that no Lexus is sold on a particular day?

b. What is the probability that for five consecutive days at least one Lexus is sold?

Solution

Solution :

Step 1 of 2:

Given a Poisson distribution with a mean of 3 per day.

So 3 .

Our goal is:

a). We need to find the probability that no Lexus is sold on a particular day.

b). We need to find the probability that for five consecutive days at least one Lexus is sold.

a). The Poisson distribution formula is

P(X=x) =

Where  3 and x=0.

P() =

P() =

P() = 0.0497

Therefore, the probability that no Lexus is sold on a particular day is 0.0497.


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full solution

Title Basic Statistics for Business and Economics  7 
Author Douglas Lind; William Marchal; Samuel Wathen
ISBN 9780077384470

The sales of Lexus automobiles in the Detroit area follow

Chapter 6 textbook questions

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