You only need to consider the situations where 10 or 11 of the babies are girls, then subtract those probabilities from 1. This will give probability that any other number up to 9 of the babies are girls.
Use binomial theorem.

n = 11
k = 10,11
p = 1/2
Answer:
350
Step-by-step explanation:
you just have to subtract ibthink
300.02 if you use the square root of 72
Answer:
I'm pretty sure it's 13.
Step-by-step explanation: