can you show work for b and c to the question:

1.The following probability model describes the number of snow storms for Washington, D.C. for a given year:(10 Points)

Number of Storms

0

1

2

3

4

5

6

Probability

.25

.33

.24

.11

.04

.02

.01

The probability of 7 or more snowstorms in a year is 0.

a)What is the probability of more than 2 but less than 5 snowstorms?

b)Given this a particularly cold year (in which 2 snowstorms have already been observed), what is the conditional probability that 4 or more snowstorms will be observed?

c)If at the beginning of winter there is a snowfall, what is the probability of at least one more snowstorm before winter is over?