Answered

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The manager of a grocery store estimates that 74% of customers will make a purchase. Part A: How many customers should a cashier expect until he finds a customer that makes a purchase?
Part B: What is the probability that a cashier helps 3 customers until he finds the first person to make a purchase?

Sagot :

Answer:

a. The number of customers that should a cashier expected till to find a customer is 1.35

b. The probability for helping three customers is 0.013

Step-by-step explanation:

The computation is shown below:

A. The number of customers that should a cashier expected till to find a customer is as follows:

= 1 ÷ 0.74

= 1.35

b. The probability for helping three customers is

= (1 - 0.74)^3 × 0.74

= 0.013

So the same is to be considered and relevant

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