Stock of a branded product at a local shop is being replenished regularly throughout the day. Demands from customers are independent and each customer is allowed to purchase only one copy of the product. Demands from customers occur singly and at a rate of 2 per 30 minutes intervals. By applying the properties of exponential distribution, calculate the expected time when a stock of 9 such items need to be replenished.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Stock of a branded product at a local shop is being replenished regularly throughout the day. Demands from customers are independent and each customer is allowed to purchase only one copy of the product. Demands from customers occur singly and at a rate of 2 per 30 minutes intervals.

By applying the properties of exponential distribution, calculate the expected time when a stock of 9 such items need to be replenished.

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