Question

lorne wants to determine the average amount of time that students at her school spend on the computer each day. there are 350 students in 15 classes. the number of boys and girls is approximately equal. which is the most random sample? 50 students in the art club 40 girls on her soccer team 2 students from each of the 15 classes 10 students from each of the 3 computer electives

Explanation:

A random sample should represent the entire student population (350 students across 15 classes, with equal boys and girls) without bias. The first option only samples art club members, which is a niche group. The second only samples girls on a soccer team, excluding boys and non-soccer students. The fourth samples students from computer electives, who likely spend more time on computers, biasing the data. The third option selects 2 students from each of all 15 classes, spreading the sample across the entire student body and reducing bias.

Answer:

2 students from each of the 15 classes