Question

Amy has 3 children, and she is expecting another baby soon. Her first three children are girls. What is the probability that the fourth baby is another girl?

Answer 1

Total possible number of outcomes = 2
{Either boy or girl}
Total possible outcome that the baby will be girl = 1

P(girl) = 1/2

Answer: 1/2

Answer 2

Obliviously 1/2.
If you roll a die and you get two times 3 the probability to get another 3 is always 1/6