Quantitative Literacy Practice Exam 2025 – Comprehensive Preparation Guide

To determine the probability of getting two boys when each child has an equal chance of being a boy or a girl, we begin by defining the probabilities involved.

Each child can be either a boy or a girl, with each having a probability of 1/2. When considering two children, we can represent the possible combinations of genders: boy-boy, boy-girl, girl-boy, and girl-girl. This gives us a total of four outcomes.

Among these outcomes, only one is the specific case of both children being boys. To find the probability of this event, we take the number of favorable outcomes (which is 1 for boy-boy) and divide it by the total number of possible outcomes (which is 4). Therefore, the probability of having two boys is calculated as follows:

Probability of getting two boys = Number of favorable outcomes / Total possible outcomes = 1 / 4.

This confirms that the correct answer is indeed 1/4, which represents the likelihood of both children being boys in a scenario where each child has an equal chance of being either.