31% of college students say they use credit cards b/c of the rewards program. You radomly select 10 students and ask each to namte the reason they use the cards. find probablity that the students use cards b/c of reward program is a) exactly two b)more than two, c) between two and five inclusive.

a) P(2)=

b) P(x>2)=

c) P(<x>5)=

TABLE

n=10 p=31

x P(X)

1 0.110

2 0.222

3 0.266

4 0.209

5 0.113

6 0.042

7 0.011

8 0.002

9 0.000

10 0.000

thanks for your help!