If x is a binomial randomvariable, calculate , 2, and for each of the following values of n and p.

n=30 p=0.5

u=

2=

=

Next

n=83, p=0.1

u=

2=

=

Next

n=98, p=0.6

u=

2=

=

Next

n=68, p=0.9

u=

2=

=

Last,

n=56, p=0.8

u=

2=

=