Question 806676
a)
n=14, x=11, p=.75 q=.25
14C11=364
364*p^11*q^3
=.240
.
b)
n=14, x=11, p=.75 q=.25
14C5=2002
2002*p^5*q^9
=.00181
.
c)
From a calculator at:
http://vassarstats.net/textbook/ch5apx.html
x=11 .2402
x=12 .1802
x=13 .0832
x=14 .0178
------------
====>.5213
.
Ed