X/a=0.5
y/a=0.5
X+y/a
a=2
X=1
y=1
x+y=a(1)
1+y=2(1)
y=2-1
y=1
Answer:
Step-by-step explanation:
Given that X is the number of months between successive payments
Cumulative distribution function of X is

a) PMF of x would be

b) 
Answer:8
Step-by-step explanation:
When you round it depends on what number it is.
So for 7.8 it is closer to eight not seven
i think an estimate for the answer would be around 90 degrees