An electronics store sells a particular model of a laptop computer. There are only four laptops in stock, and the manager wonders what today's demand for this particular model will be. She learns from the marketing department that the probability distri- bution for x, the daily demand for the laptop, is as shown in the table. Find the mean, variance, and standard deviation of x. Is it likely that five or more customers will want to buy the laptop today? X 0 1 2 3 4 5 p(x) .10 .40 .15 .10 .20 .05

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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An electronics store sells a particular model of a laptop computer. There are only four
laptops in stock, and the manager wonders what today's demand for this particular
model will be. She learns from the marketing department that the probability distri-
bution for x, the daily demand for the laptop, is as shown in the table. Find the mean,
variance, and standard deviation of x. Is it likely that five or more customers will want
to buy the laptop today?
X
0
1
2
3
4
5
p(x) .10
.40
.15
.10
.20
.05
Transcribed Image Text:An electronics store sells a particular model of a laptop computer. There are only four laptops in stock, and the manager wonders what today's demand for this particular model will be. She learns from the marketing department that the probability distri- bution for x, the daily demand for the laptop, is as shown in the table. Find the mean, variance, and standard deviation of x. Is it likely that five or more customers will want to buy the laptop today? X 0 1 2 3 4 5 p(x) .10 .40 .15 .10 .20 .05
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