Question 1050720
We use the binary probability formula
:
Probability of k events in n occurrences = nCk * p^k * q^(n-k), where p is probability of event occurring, q = 1-p, nCk is combination of n items taken k at a time
:
for our example, p = 0.46, q = 0.54, n=10
:
a) Probability( k = 8 ) = 0.026
:
b) Probability( k > or = 8 ) = 0.032
:
c) Probability( k < 8 ) = 0.968
: