Select the pair of variables that could be used in an experiment to reach a cause-and-effect conclusion.(1 point)

Question

Responses

time spent exercising and weight loss
time spent exercising and weight loss

height and hair length
height and hair length

sun exposure and ice cream sales
sun exposure and ice cream sales

outside temperature and number of bike rentals

Answer 1

The pair of variables that could be used in an experiment to reach a cause-and-effect conclusion is:

time spent exercising and weight loss

This is because changes in the amount of exercise can be manipulated (independent variable), and its effect on weight loss (dependent variable) can be measured. The other pairs either communicate correlation without a clear cause-and-effect relationship or involve extraneous factors.