Mrs. Lemos' Block 4 Math 2 class had an average of 60% on a practice final exam with a standard deviation of 7.6. Mrs. Lemos gave each student an additional 10 points on their exam as a curve. Which of the following is always true?
The mean will increase by 10 points and the standard deviation will decrease.

The mean will remain the same and the standard deviation will increase.

The mean will remain the same and the standard deviation will remain the same.

The mean will increase by 10 points and the standard deviation will remain the same.