A married

A married couple planned to have three children.
i. List the possible combinations of the sexes of 3 children. Use B for a boy and G for a girl.
ii. Calculate the probability that all three children would be of the same gender

Correct answer:

n =  8
p =  0.25

Step-by-step explanation:

$$\begin{gathered} n=2^3=8 \\ BBB \\ BBG \\ BGB \\ BGG \\ GBB \\ GBG \\ GGB \\ GGG \end{gathered}$$

$p=\frac{1+1}{n}=\frac{1+1}{8}=\frac{1}{4}=0.25$

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