Question

Each time that a Martian egg hatches, there is a 43% chance that the baby is female. Round to 4 decimal places.

a) If 25 eggs hatch, find the probability that exactly 10 are female.

b) If 17 eggs hatch, find the expected number of female babies.
c) If 20 eggs hatch, find the probability that at least 9 babies are female.
d) If 8 eggs hatch, find the probability that less than 7 babies are NOT female.

e) If 40 eggs hatch, find the mean and standard deviation in the number of females.

Answer 1