A class of 100 students just finished a very hard exam. The average of the exam is 50%. The teacher decided to add 10% to everyone's score. Which of the following is/are TRUE of the scaled scores? A.

The mean of the scaled scores will not change.

B.

The mean of the scaled scores will be 10% higher than the mean of the original scores.

C.

The variance of the scaled scores will not change.

D.

The variance of the scaled scores will be 10 times higher than the mean of the original scores.

E.

A and C

F.

A and D

G.

B and C

H.

B and D