ind let Y denote the number of defective tires. (b) Compute P(X1 and Y1) from the joint probability table. P(X1 and Y1)=[ Does P(X1 and Y1) equal the product P(X1)P(Y1) ? Yes No (c) What is P(X+Y=0) (the probability of no violations)? P(X+Y=0)= (d) Compute P(X+Y1)..