Fifteen items or less: The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. x 0 1 2 3 4 5 Px 0.05 0.25 0.30 0.25 0.10 0.05 If each customer takes 3 minutes to check out, what is the probability that it will take more than 6 minutes for all the customers currently in line to check out?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section: Chapter Questions
Problem 76RE
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Fifteen items or less: The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution.

x
0
1
2
3
4
5
Px
0.05
0.25
0.30
0.25
0.10
0.05

If each customer takes 

3

 minutes to check out, what is the probability that it will take more than 

6

 minutes for all the customers currently in line to check out?

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