Question

a student working an independent research project wants to investigate if there is an association between the amount of sleep someone gets and their body mass index (bmi) - an indicator of body fatness. for a sample of 45 students, she records their bmi and the average amount of sleep they get on weeknights over a two - week period. what would it mean for average amount of sleep and bmi to be positively correlated? it would mean that the more sleep individuals get, the higher their bmi tends to be. it would mean that individuals who get more sleep tend to have lower bmis.

Explanation:

In correlation, a positive correlation means that as one variable increases, the other variable also tends to increase. Here, the two variables are average amount of sleep and BMI. So if they are positively correlated, more sleep is associated with a higher BMI.

Answer:

It would mean that the more sleep individuals get, the higher their BMI tends to be.