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Section 4.2. Probability Distributions for Discrete Random Variables Exercise 2. Determine whether or not the table is a valid probability distribution of a discrete random variable. Explain fully a. 0.25 0.50 0,35 0,10 0.30 b. 0.325 0.406 0,164 C. 26 0.27 27 28 0.18 29 0,14 0.13 Exercise 4. A discrete random variable X has the following probability distribution: 24 0.17 27 0.16 20 0,22 0.25 0,20 Compute each of the following quantities a. P(18) b. P(X> 18) c, P(X 18) d, The mean μ of X e. The variance σ2 of X f. The standard deviation σ of X

Section 4.2. Probability Distributions for Discrete Random Variables Exercise 2. Determine whether or not the table is a valid probability distribution of a discrete random variable. Explain fully a. 0.25 0.50 0,35 0,10 0.30 b. 0.325 0.406 0,164 C. 26 0.27 27 28 0.18 29 0,14 0.13 Exercise 4. A discrete random variable X has the following probability distribution: 24 0.17 27 0.16 20 0,22 0.25 0,20 Compute each of the following quantities a. P(18) b. P(X> 18) c, P(X 18) d, The mean μ of X e. The variance σ2 of X f. The standard deviation σ of X

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Section 4.2. Probability Distributions for Discrete Random Variables Exercise 2. Determine whether or not the table is a valid probability distribution of a discrete random variable. Explain fully a. 0.25 0.50 0,35 0,10 0.30 b. 0.325 0.406 0,164 C. 26 0.27 27 28 0.18 29 0,14 0.13 Exercise 4. A discrete random variable X has the following probability distribution: 24 0.17 27 0.16 20 0,22 0.25 0,20 Compute each of the following quantities a. P(18) b. P(X> 18) c, P(X 18) d, The mean μ of X e. The variance σ2 of X f. The standard deviation σ of X
Transcribed Image Text:Section 4.2. Probability Distributions for Discrete Random Variables Exercise 2. Determine whether or not the table is a valid probability distribution of a discrete random variable. Explain fully a. 0.25 0.50 0,35 0,10 0.30 b. 0.325 0.406 0,164 C. 26 0.27 27 28 0.18 29 0,14 0.13 Exercise 4. A discrete random variable X has the following probability distribution: 24 0.17 27 0.16 20 0,22 0.25 0,20 Compute each of the following quantities a. P(18) b. P(X> 18) c, P(X 18) d, The mean μ of X e. The variance σ2 of X f. The standard deviation σ of X
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