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The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 2 4 8 16 0.05 p(x) 0.05 0.15 0.30 0.45 0.05 X (a) Compute E(X). (b) Compute V(X) directly from the definition. (c) Compute the standard deviation of X.

The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 2 4 8 16 0.05 p(x) 0.05 0.15 0.30 0.45 0.05 X (a) Compute E(X). (b) Compute V(X) directly from the definition. (c) Compute the standard deviation of X.

College Algebra
College Algebra
10th Edition
ISBN:9781337282291
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Exponential And Logarithmic Functions
Section5.4: Exponential And Logarithmic Equations
Problem 83E: The number N of beavers in a given area after x years can be approximated by N=5.5100.23x,0x10. Use...
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This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 8 16 p(x) 0.05 0.15 0.30 0.45 0.05 X (a) Compute E(X). 2 4 (b) Compute V(X) directly from the definition. (c) Compute the standard deviation of X. (d) Compute V(X) using the shortcut formula.
Transcribed Image Text:This question has several parts that must be completed sequentially. If you skip a part of the question, you will not receive any points for the skipped part, and you will not be able to come back to the skipped part. Tutorial Exercise The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 8 16 p(x) 0.05 0.15 0.30 0.45 0.05 X (a) Compute E(X). 2 4 (b) Compute V(X) directly from the definition. (c) Compute the standard deviation of X. (d) Compute V(X) using the shortcut formula.
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