Maurice Tutor

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Algebra,Applied Sciences See all
Algebra,Applied Sciences,Biology,Calculus,Chemistry,Economics,English,Essay writing,Geography,Geology,Health & Medical,Physics,Science Hide all
Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 20 Jan 2018 My Price 6.00

short quiz

 a. Compute the covariance for X and Y in Exercise 22.

b. Compute r for X and Y in the same exercise.

Exercise 22. An 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 accompanying table.

a. 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)?

b. If the maximum of the two scores is recorded, what is the expected recorded score?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 20 Jan 2018 11:01 PM My Price 6.00

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