following data have been collected on the number of times that owner-occupied and renter-occupied units had a water supply stoppage lasting 6 or 3 more hours over a -month period.

	Number of Units (1,000s)
Number of Times	Owner Occupied	rental occupied
0	547	23
1	5,012	541
2	6,110	3,734
3	2,544	8,660
4 times or more	557	3,784

Round your answers to two decimal places.

a.Define a random variablenumber of times that owner-occupied units had a water supply stoppage lastingor more hours in the pastmonths and develop a probability distribution for the random variable. (Letrepresentor more times.)

x	f(x)
0
1
2
3
4
total

b.Compute the expected value and variance for.

E(X)

Var(x)

c.Define a random variable y= number of times that renter-occupied units had a water supply stoppage lastingor more hours in the pastmonths and develop a probability distribution for the random variable. (Letrepresentor more times.)

y	f(y)
0
1
2
3
4
total

d.Compute the expected value and variance for y

E(y)

var(y)