Answer Happy

Please help to solve this probability problem. The numbers on
the line (excluding the question numbers like 1. 2. 3.) are the
final correct answers (for this question, the correct answers are
1.33 and 6.75 respectively). Please give detailed steps to explain
how to get the final correct answer. Thanks!
2. Fill in the blanks The random variables X and Y are jointly continuous, with a joint probability density function given by e y if 0 < x < y, f(x,y) y 0 otherwise. = 1. 1.33 (2 decimal places) E[X? | Y=2] = E[X3|Y=3] = = 2. 6.75 (2 decimal places)