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1. The probability distribution of the amount of memory X (GB) in a pur- chased flash...
The pmf of the amount of memory X (GB) in a purchased flash drive is given...
The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following 2 4 8 16 p(x) 0.05 0.15 0.30 0.40 0.10 (a) Compute E(X). (Enter your answer to two decimal places.) GB (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) GB2 GB (d) Compute using the shortcut formula (Enter your answer to four decimal places.) GB2
The pmf of the amount of memory X (GB) In a purchased flash drive is given...
The pmf of the amount of memory X (GB) In a purchased flash drive is given as the following. 2 4 8 16 p(x)0.05 0.10 0.30 0.40 0.15 (a) Compute E(X). (Enter your answer to two decimal places.) 7.05 (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) 69.2500 c) Compute the standard deviation of X. (Round your answer to three decimal places.) 4.811 X GB (d) Compute V(x) using the shortcut formula. (Enter your...
12.-14 points DevoreStat9 3.E.029 The pmf of the amount of memory X (GB) in a purchased...
12.-14 points DevoreStat9 3.E.029 The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 2 4 83 16 p(x) 0.05 0.15 0.30 0.450.05 (a) Compute E(X). (Enter your answer to two decimal places.) GB (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) (c) Compute the standard deviation of X. (Round your answer to three decimal places.) GB (d) Compute V(x) using the shortcut formula....
1. The probability distribution of a discrete random variable X is given by: P(X =-1) =...
1. The probability distribution of a discrete random variable X is given by: P(X =-1) = 5, P(X = 0) = and P(X = 1) = ? (a) Compute E[X]. (b) Determine the probability distribution Y = X2 and use it to compute E[Y]. (c) Determine E[x2] using the change-of-variable formula. (You should match your an- swer in part (b). (d) Determine Var(X).
3. The probability distribution of the discrete random variable X is f(x) = 2 x 1...
3. The probability distribution of the discrete random variable X is f(x) = 2 x 1 8 x 7 8 2−x , x = 0, 1, 2. Find the mean of X. 4. The random variable X, representing the number of errors per 100 lines of software code, has the following probability distribution: x 1 2 3 5 6 f(x) 0.03 0.37 0.2 0.25 0.15 (a) Find E(X). (b) Find E(X2 ). 5. Use the distribution from Problem 4. (a)...
In the following probability distribution
In the following probability distribution, the random variable represents the number of a part of a K to 5th grade student is involved in Complete parts (a) through (f) below.x01234P(x)0.2950.1050.2900.0540.248(a) that this is a discrete probability distribution. This is a discrete probability distribution because the sum of the probabilities is _______ and each probability is _______ b) Graph the discrete probability distribution. Choose the correct graph below.(c) Compute and interpret the mean of the random variable x.The mean is _______ activities.
1. Given the discrete probability distribution for x = 1, 2, 3, 4, or 5. X...
1. Given the discrete probability distribution for x = 1, 2, 3, 4, or 5. X P(x) 1 5/15 N 4/15 3 3/15 4 2/15 5 1/15 Find the standard deviation of a discrete probability distribution.
A discrete probability distribution differs from a continuous probability distribution, by only t...
A discrete probability distribution differs from a continuous probability distribution, by only taking values on a discrete set (like the whole numbers) instead of a continuous set. The geometric distribution is a discrete probability distribution which measures the number of times an experiment must be repeated before a success occurs. For example, in this problem, we will roll a fair six-sided die until the number six occurs, at which point we stop rolling. (a) If we are rolling a die,...
Determine whether or not the distribution is a discrete probability distribution and select the reason why...
Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not. х -110 3 1 P(X = x) 2 4 8 Keypad Answer 1 Point E Tables First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision. Decide Yes No Reason Since the probabilities lie inclusively between 0 and 1 and the sum of the probabilities is equal to 1. Since at least one...
In the following probability distribution, the random variable x represents the number of activities a...
In the following probability distribution, the random variable x represents the number of activities a parent of a 6 th- to 8th-grade student is involved in. Complete parts (a) through (f) below.x01234P(x)0.3670.1330.2090.1160.175(a) Verify that this is a discrete probability distribution.This is a discrete probability distribution because the sum of the probabilities is _______ and each probability is _______ (b) Graph the discrete probability distribution. Choose the correct graph below.(c) Compute and interpret the mean of the random variable x .The mean...
The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following 2 4 8 16 p(x) 0.05 0.15 0.30 0.40 0.10 (a) Compute E(X). (Enter your answer to two decimal places.) GB (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) GB2 GB (d) Compute using the shortcut formula (Enter your answer to four decimal places.) GB2
The pmf of the amount of memory X (GB) In a purchased flash drive is given as the following. 2 4 8 16 p(x)0.05 0.10 0.30 0.40 0.15 (a) Compute E(X). (Enter your answer to two decimal places.) 7.05 (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) 69.2500 c) Compute the standard deviation of X. (Round your answer to three decimal places.) 4.811 X GB (d) Compute V(x) using the shortcut formula. (Enter your...
12.-14 points DevoreStat9 3.E.029 The pmf of the amount of memory X (GB) in a purchased flash drive is given as the following. 1 2 4 83 16 p(x) 0.05 0.15 0.30 0.450.05 (a) Compute E(X). (Enter your answer to two decimal places.) GB (b) Compute V(X) directly from the definition. (Enter your answer to four decimal places.) (c) Compute the standard deviation of X. (Round your answer to three decimal places.) GB (d) Compute V(x) using the shortcut formula....
1. The probability distribution of a discrete random variable X is given by: P(X =-1) = 5, P(X = 0) = and P(X = 1) = ? (a) Compute E[X]. (b) Determine the probability distribution Y = X2 and use it to compute E[Y]. (c) Determine E[x2] using the change-of-variable formula. (You should match your an- swer in part (b). (d) Determine Var(X).
1. Given the discrete probability distribution for x = 1, 2, 3, 4, or 5. X P(x) 1 5/15 N 4/15 3 3/15 4 2/15 5 1/15 Find the standard deviation of a discrete probability distribution.
A discrete probability distribution differs from a continuous probability distribution, by only taking values on a discrete set (like the whole numbers) instead of a continuous set. The geometric distribution is a discrete probability distribution which measures the number of times an experiment must be repeated before a success occurs. For example, in this problem, we will roll a fair six-sided die until the number six occurs, at which point we stop rolling. (a) If we are rolling a die,...
Determine whether or not the distribution is a discrete probability distribution and select the reason why or why not. х -110 3 1 P(X = x) 2 4 8 Keypad Answer 1 Point E Tables First, decide whether the distribution is a discrete probability distribution, then select the reason for making this decision. Decide Yes No Reason Since the probabilities lie inclusively between 0 and 1 and the sum of the probabilities is equal to 1. Since at least one...
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