Probability and Mathematical Statistics

The first question: It is a question of two random variables. Let them start at x and y respectively. Then the two do not affect each other, that is, they are independent of each other and obey uniform distribution in their respective intervals. The event probability to be calculated can be described as p (x+t1"y" or y+t2 "x"). Draw a rectangular coordinate system and calculate it in these two areas.

Question 2: There are 1% people suffering from hepatitis in a certain area, that is, the probability of each person suffering from hepatitis is 1%, and then calculate.