instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the companying table. P(x, y) o 5 10 15 0 0.03 0.06 0.02 0.10 5 0.04 0.13 0.20 0.10 10 0.01 0.15 0.15 0.01 ) If the score recorded in the grade book is the total number of points earned on the two parts, what is the expected recorded score E(X + Y)? (Enter your answer to one decimal place.) ) If the maximum of the two scores is recorded, what is the expected recorded score? (Enter your answer to two decimal places.)
instructor has given a short quiz consisting of two parts. For a randomly selected student, let X = the number of points earned on the first part and Y = the number of points earned on the second part. Suppose that the joint pmf of X and Y is given in the companying table. P(x, y) o 5 10 15 0 0.03 0.06 0.02 0.10 5 0.04 0.13 0.20 0.10 10 0.01 0.15 0.15 0.01 ) If the score recorded in the grade book is the total number of points earned on the two parts, what is the expected recorded score E(X + Y)? (Enter your answer to one decimal place.) ) If the maximum of the two scores is recorded, what is the expected recorded score? (Enter your answer to two decimal places.)
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter10: Sequences, Series, And Probability
Section10.8: Probability
Problem 32E
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