Question

Jake has found a correlation between the amount of time he spends exercising every day and the number of hourshe sleeps at night. The more he exercises, the longer he sleeps. However, his psychology instructor explained tohim that correlation does not mean causation. This means that1. the correlation isn’t real because they can’t explain why it is happening.2. sleep doesn’t cause the exercise.3. exercise doesn’t cause the sleep.4. by itself, the correlation doesn’t say if more exercise causes longer sleep.

Answer 1

Answer:4. by itself, the correlation doesn’t say if more exercise causes longer sleep.

Explanation: Correlation only tells us that there exist a relationship between two or more variables but it doesn't actual means that one variable is the cause of the changes that we see in the other variable. This means by looking at this we can't tell if exercise is actual the cause of effective sleep.