Suppose the students at the University of Amsterdam, the Netherlands, are classified according their school grades (X), and the number of daily hours spent watching shows on Netflix (Y = 0 for no hours, 1 for one hour, 2 for more than one hour). The joint probabilities in the accompanying table were estimated for these random variables.

a. Find the probability that a randomly chosen student does not watch Netflix.
b. Find the means of the random variables X and Y.
c. Find and interpret the covariance between the random variables X and Y.

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Hours Spent on Netflix (Y) 0 1 2 1 0.06 0.14 0.04 Students' Grades (X) 2 0.04 0.12 0.04 3 0.02 0.18 0.09 4 0.00 0.20 0.10