An electronics store sells a particular model of a laptop computer. There are only 4 laptops in stock and the manager wonders what today’s demand for this model will be. She learns from the marketing department that the probability distribution for X, the daily demand for the laptop, is as shown in table below. Find the mean and standard deviation of the daily demand for laptop.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section1.4: Fractional Expressions
Problem 8E
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An electronics store sells a particular model of a laptop computer. There are only 4 laptops in stock and the manager wonders what today’s demand for this model will be. She learns from the marketing department that the probability distribution for X, the daily demand for the laptop, is as shown in table below. Find the mean and standard deviation of the daily demand for laptop.

1
2
3
4
P(X)
0.1
0.4
0.2
0.15
0.10
0.05
Transcribed Image Text:1 2 3 4 P(X) 0.1 0.4 0.2 0.15 0.10 0.05
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