please help!

Question

April and Sanjay are both using tools to simulate the probability that a family with three children will have exactly one girl. April is using a coin, with tails up representing a boy and heads up representing a girl. She flipped the coin three times. Sanjay rolled a number cube three times with odd numbers representing a boy and even numbers representing a girl.

Which statement best describes their simulations?

Both simulations have the same theoretical probability of a 3-child family having exactly one girl, but their experimental probabilities may differ.
The simulations have different theoretical probabilities of a 3-child family having exactly one girl, and the experimental probabilities they generate may differ.
The simulations have different theoretical probabilities of a 3-child family having exactly one girl, but their experimental probabilities will be the same.
Both simulations have the same theoretical probability of a 3-child family having exactly one girl, and their experimental probabilities will be the same.

Answer 1

1st choice among the options

probability of 1 girl in 3 children = 3C1(1/2)^3 = 3/8 = 37.5% chance