If x is a binomial random variable, calculate u , o and o2 for each of the following values of n and p. Complete parts a through f.

a.n= 28 p=0.4

u=

o2=

o

b. n=75 p=0.2

u=

o2=

o=

c. n=103, p=0.6

u=

o2=

o=

d. n=68 p=0.9

u=

o2=

o=

e. n=57 p=0.8

u=

o2=

o=

f. n= 900 p=0.07

u=

o2=

o=