Need help with my Statistics question - I’m studying for my class.
Hello, I have this homework due tomorrow. Please solve these in detail. Thank you.
Homework 4 CE/AREN 3301 fall 2020 Due: Monday November 9th , 2020 at 10:00 AM Q1 (1.5 pt.): 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) Calculate the correlation between X and Y.