Data was taken on height and weight from the entire population of 700 mountain gorillas living in the Democratic Republic of Congo: ht\wt light average heavy short 170 70 30 tall 85 190 155 Let X encode the weight, taking the values of a randomly chosen gorilla: 0, 1, 2 for light, average, and heavy respectively. Likewise, let Y encode the height, taking values 0 and 1 for short and tall respectively. (a) Determine the joint pmf of X and Y and the marginal pmf's of X and of Y. (b) Are X and Y independent? (c) Find the covariance of X and Y.

Data was taken on height and weight from the entire population of 700 mountain gorillas living in the Democratic Republic of Congo: ht\wt light average heavy short 170 70 30 tall 85 190 155 Let X encode the weight, taking the values of a randomly chosen gorilla: 0, 1, 2 for light, average, and heavy respectively. Likewise, let Y encode the height, taking values 0 and 1 for short and tall respectively. (a) Determine the joint pmf of X and Y and the marginal pmf's of X and of Y. (b) Are X and Y independent? (c) Find the covariance of X and Y.

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter4: Polynomial And Rational Functions

Section4.6: Variation

Problem 15E

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