4. The distribution of the time until change (in days) of a Web Days until Changes 1.5 site is approximated in the following table. Probability Calculate the mean and variance for X. 0.05 3.0 0.25 4.5 0.35 5.0 0.20 7.0 0.15

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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4. The distribution of the time until change (in days) of a Web Days until
Changes
site is approximated in the following table.
Probability
Calculate the mean and variance for X.
1.5
0.05
3.0
0.25
4.5
0.35
5.0
0.20
7.0
0.15
Transcribed Image Text:4. The distribution of the time until change (in days) of a Web Days until Changes site is approximated in the following table. Probability Calculate the mean and variance for X. 1.5 0.05 3.0 0.25 4.5 0.35 5.0 0.20 7.0 0.15
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