A bank has a drive-through service. The number of customers arriving during a 15-minute period is distributed

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A bank has a drive-through service. The number of customers arriving during a 15-minute period is distributed as shown. Find the mean, variance, and standard deviation for the distribution.

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Elementary Statistics A Step By Step Approach

ISBN: 9780073386102

8th Edition

Authors: Allan Bluman

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Question Posted: Sep 02, 2015 03:44 AM

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A bank has a drive-through service. The number of customers arriving during a 15-minute period is distributed

Question:

Number of customers X 2 4 Probability P(X) 012 0.20 0.3 0.25 0.12

Step by Step Answer:

X PX 0012 1020 2031 3025 012 205 or 21 2 X 2 PX 2 0 2 ...View the full answer

Elementary Statistics A Step By Step Approach

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