4. Given P(5) = 0.4 P(10) = 0.3 P(15) = 0.2 P(20) = 0.1
a) What is the Mean?
b) What is the Variance?
c) What is P (X > 15)?
d) What is P (X < 20)?
5. Given a Uniform Distribution with 4 possible values of X = {20, 40, 60, 80)
a) What is P(X) for every 'X'?
b) What is the Mean?
c) What is the Variance?
d) What is P (X = 80)?