Determine the values of c so that the following functions represent joint probability distributions of the random variables X and Y : (a) f(x, y)=cxy, forx =1 ,2,3; y =1 ,2,3; (b) f(x, y)=c|x−y|, forx = −2,0,2; y = −2,3.

The joint probility density will be c = 1/36

The joint probability distribution will be c = 1/15

Step-by-step explanation:

For step by step explanation see the pucture attached

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.