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1. Use the discrete probability distribution of the random variable, X, to answer the question that follow. a. X 4 1 0 -3 P(X) 0.25 0.30 0.25 (2 pts) Determine P(X = -3) so that this is a legitimate probability distribution. b. (3 pts) Determine the expected value of X, providing the formula used, setup and value obtained. c. (4 pts) Determine the standard deviation of X, providing the formula used, setup and value obtained.

1. Use the discrete probability distribution of the random variable, X, to answer the question that follow. a. X 4 1 0 -3 P(X) 0.25 0.30 0.25 (2 pts) Determine P(X = -3) so that this is a legitimate probability distribution. b. (3 pts) Determine the expected value of X, providing the formula used, setup and value obtained. c. (4 pts) Determine the standard deviation of X, providing the formula used, setup and value obtained.

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.CR: Chapter 13 Review
Problem 31CR
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Hello, I am extremely confused on the following questions. Can I get help with all of them? They pertain to the same question. Answers with CORRECT and clear explanations would be helpful. Thanks!
1. Use the discrete probability distribution of the random variable, X, to answer the question that follow. a. X 4 1 0 -3 P(X) 0.25 0.30 0.25 (2 pts) Determine P(X = -3) so that this is a legitimate probability distribution. b. (3 pts) Determine the expected value of X, providing the formula used, setup and value obtained. c. (4 pts) Determine the standard deviation of X, providing the formula used, setup and value obtained.
Transcribed Image Text:1. Use the discrete probability distribution of the random variable, X, to answer the question that follow. a. X 4 1 0 -3 P(X) 0.25 0.30 0.25 (2 pts) Determine P(X = -3) so that this is a legitimate probability distribution. b. (3 pts) Determine the expected value of X, providing the formula used, setup and value obtained. c. (4 pts) Determine the standard deviation of X, providing the formula used, setup and value obtained.
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