Four buses carrying 151 high school students arrive to Montreal. The buses carry, respectively, 35, 41, 31, and 44 students. One of the students is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the four bus drivers is also randomly selected. Let y denote the number of students on his bus. Compute the expectations and variances of X and Y: E(X) = Var(X) =

Four buses carrying 151 high school students arrive to Montreal. The buses carry, respectively, 35, 41, 31, and 44 students. One of the students is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the four bus drivers is also randomly selected. Let y denote the number of students on his bus. Compute the expectations and variances of X and Y: E(X) = Var(X) =

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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