Ms. Thomas predicted the average score of her 8th grade math classes would be 80%. She based this on the average of 1 class out of the 6 classes she teaches.

What statement below is correct?

A. The average of the 1 class is enough to predict because the other classes are honors classes.

B. The total average after calculating all 6 classes will be exactly 80%.

C. The prediction of 80% is much too high.

D. Ms. Thomas cannot predict what the average of all her classes will be based on only 1 class.

Question

Ms. Thomas predicted the average score of her 8th grade math classes would be 80%. She based this on the average of 1 class out of the 6 classes she teaches.

What statement below is correct?

A. The average of the 1 class is enough to predict because the other classes are honors classes.

B. The total average after calculating all 6 classes will be exactly 80%.

C. The prediction of 80% is much too high.

D.  Ms. Thomas cannot predict what the average of all her classes will be based on only 1 class.