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The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. k 0 1 2 3 a) P(X=2)= 4 LO P(x=k) 0.10 0.25 0.30 0.20 0.10 0.05 5 on average. b) The probability that strictly more than three customers are in line at the express checkout is c) In the long run, the number of customers in line at the express checkout is

The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. k 0 1 2 3 a) P(X=2)= 4 LO P(x=k) 0.10 0.25 0.30 0.20 0.10 0.05 5 on average. b) The probability that strictly more than three customers are in line at the express checkout is c) In the long run, the number of customers in line at the express checkout is

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 19E
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The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. k 0 1 a) P(X=2)= 2 3 P(x=k) 0.10 0.25 0.30 0.20 0.10 0.05 d) P(X=0 U X=4)= 4 5 b) The probability that strictly more than three customers are in line at the express checkout is c) In the long run, the number of customers in line at the express checkout is , on average. e) The probability that one or less customers are in line at the express checkout is
Transcribed Image Text:The number of customers in line at a supermarket express checkout counter is a random variable with the following probability distribution. k 0 1 a) P(X=2)= 2 3 P(x=k) 0.10 0.25 0.30 0.20 0.10 0.05 d) P(X=0 U X=4)= 4 5 b) The probability that strictly more than three customers are in line at the express checkout is c) In the long run, the number of customers in line at the express checkout is , on average. e) The probability that one or less customers are in line at the express checkout is
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