Question

mr. reed studied his biology students homework and test scores. he found that students who completed more homework did not tend to earn higher or lower scores on the test. what should he conclude? there is no correlation between test score and amount of homework completed. there is a correlation between test score and amount of homework completed. there is probably also causation. this is because there might be an increase in a students test score with an increase in the amount of homework completed. there is a correlation between test score and amount of homework completed. there may or may not be causation. further studies would have to be done to determine this.

Explanation:

Correlation shows a relationship between two variables. Just because students who completed more homework had higher test - scores doesn't mean more homework causes higher scores. There could be other factors at play.

Answer:

There is a correlation between test score and amount of homework completed. There is probably also causation. This is because there might be an increase in a student's test score with an increase in the amount of homework completed. There may or may not be causation. Further studies would have to be done to determine this.