The distribution of the time until change (in days) of a Web site is approximated in the following table. Days until Changes Probability 1.5 0.05 3.0 0.25 4.5 0.35 5.0 0.20 7.0 0.15 Let the random variable X denote the days until change. Detemine the cumulative distribution function for X. x < 1.5 1.5

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
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Chapter10: Statistics
Section: Chapter Questions
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The distribution of the time until change (in days) of a Web site is approximated in the following table.
Days until Changes Probability
1.5
0.05
3.0
0.25
4.5
0.35
5.0
0.20
7.0
0.15
Let the random variable X denote the days until change. Detemine the cumulative distribution function for X.
x < 1.5
1.5 <x < 3
3 <x < 4.5
4.5 < x < 5
5 <x < 7
i
i
i
i
i
i
F(x)
Transcribed Image Text:The distribution of the time until change (in days) of a Web site is approximated in the following table. Days until Changes Probability 1.5 0.05 3.0 0.25 4.5 0.35 5.0 0.20 7.0 0.15 Let the random variable X denote the days until change. Detemine the cumulative distribution function for X. x < 1.5 1.5 <x < 3 3 <x < 4.5 4.5 < x < 5 5 <x < 7 i i i i i i F(x)
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