Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 34, 44, 32, and 43 students. One of the studetns is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let X denote the number of students on his bus. Compute the expectations and variances of X and Y: E(X) = | Var(X) E(Y) Var(Y) =
Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 34, 44, 32, and 43 students. One of the studetns is randomly selected. Let X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let X denote the number of students on his bus. Compute the expectations and variances of X and Y: E(X) = | Var(X) E(Y) Var(Y) =
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter4: Polynomial And Rational Functions
Section4.6: Rational Functions
Problem 87E
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![Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 34, 44, 32, and 43 students. One of the studetns is randomly selected. Let
X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let X denote the
number of students on his bus. Compute the expectations and variances of X and Y:
E(X) = |
Var(X)
E(Y)
Var(Y) =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7d69634b-8a8a-4609-8704-3bdadaefe256%2F44820eaa-d084-4152-a1d9-92f20aec8323%2F6bx7mc_processed.png&w=3840&q=75)
Transcribed Image Text:Four buses carrying 153 high school students arrive to Montreal. The buses carry, respectively, 34, 44, 32, and 43 students. One of the studetns is randomly selected. Let
X denote the number of students that were on the bus carrying this randomly selected student. One of the 4 bus drivers is also randomly selected. Let X denote the
number of students on his bus. Compute the expectations and variances of X and Y:
E(X) = |
Var(X)
E(Y)
Var(Y) =
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