Question

A school maintenance worker wants to estimate how many of the 1,00 lightbulb in their 55 classrooms need a new light bulb. Which of the following is a random sample of the light bulb to be inspected.

a. all light bulbs in the sixth grade classrooms
b. all light bulbs from rooms on the second floor of the school
c. all light bulbs in the classrooms not currently being used
d. 10 classrooms on each floor chosen randomly

Answer 1

[AI-generated answer — Bot GPT 3.5]

d. 10 classrooms on each floor chosen randomly

This option provides a random sample of light bulbs throughout the school and can give a more accurate estimate of how many light bulbs need to be replaced overall.