Question

Alice and Bill are planning to have 3 children. What is the probability that they will have:
a)All girls
b)At least 1 girl
c)Not all 3 of the same gender

Answer 1

possible variations:
BBB
GGG
BBG
BGG

Answer 2

all girls is 1/4
at least one girl is 3/4
not all same gender is also 3/4

Answer 3

for all girls 1/4 because all girls (GGG) repeats only 1 time from 4.
same for others

Answer 4

at least one girl is 3/4 because (GGG, BBG, BGG) out of 4

Answer 5

There are 2^3 = 8 possible ways to have 3 kids and they are

BBB

BBG
BGB
GBB

BGG
GBG
GGB

GGG

Answer 6

thanks guys!!!