The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. x124816p(x)0.050.150.300.350.15 (a) Compute E(X) (in GB). (Enter your answer to two decimal places.)
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The pmf is given as follows: - For X = 1, p(1) = 0.05 - For X = 2, p(2) = 0.15 - For X = 4, p(4) = 0.30 - For X = 8, p(8) = 0.35 - For X = 16, p(16) = 0.15 Show more…
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The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. x | 1 | 2 | 4 | 8 | 16 p(x) | 0.05 | 0.15 | 0.30 | 0.35 | 0.15 (a) Compute E(X). (Enter your answer to two decimal places.) 6.75 GB (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) 20.6876 GB2 (c) Compute the standard deviation of X. (Round your answer to three decimal places.) 4.548 GB (d) Compute V(X) using the shortcut formula. (Enter your answer to four decimal places.) 20.6875 GB2
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The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. x | 1 | 2 | 4 | 8 | 16 p(x) | 0.05 | 0.15 | 0.30 | 0.35 | 0.15 (a) Compute E(X) (in GB). (Enter your answer to two decimal places.) GB (b) Compute V(X) (in GB²) directly from the definition. (Enter your answer to four decimal places.) GB² (c) Compute the standard deviation of X (in GB). (Round your answer to three decimal places.) GB (d) Compute V(X) (in GB²) using the shortcut formula. (Enter your answer to four decimal places.) GB²
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The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. x 1 2 4 8 16 p(x) 0.05 0.15 0.30 0.35 0.15 (a)Compute E(X) (in GB). (Enter your answer to two decimal places.) (b)Compute V(X) (in GB2) directly from the definition. (Enter your answer to four decimal places.) (c)Compute the standard deviation of X (in GB). (Round your answer to three decimal places.) (d)Compute V(X) (in GB2) using the shortcut formula. (Enter your answer to four decimal places.)
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