Professor jones surveyed her six classes and found that students who slept less than 5 hours the night before an exam received lower exam scores than those students who slept 7 hours or more. what kind of correlation is this relationship between hours of sleep and scores?

Positive correlation

Explanation

In statistics, Correlation measures the degree to which two variables are linearly related and it has direction either positive or negative.

Positive correlation shows the two variables move in the same direction an increase of one will in turn increase the other.

Negative, the two variables will move to the opposite direction. An increase in one variable decreases the other.

Hours of sleep and Exam scores are positively correlated . Since a decrease in the number of hours of sleep lead to the decrease in the exam score.

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.