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:
x= 90-60
x=30
Step-by-step explanation:
Answer:
12.54 square miles
Step-by-step explanation:
Area of Parallelogram = Base x Height
In this case, Base = 3.3 mi and Height = 3.8 mi
Hence,
Area = 3.3 x 3.8 = 12.54 square miles
Answer:
x=1
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
If the 8y/4 is the only fraction, the answer is x=7y
If the whole input of the equation is in a fraction, the answer is x=28y
:)