Answer:
65.
Explanation:
We have been given the scores received by Linda on her essay tests and we are asked to find the mean of Linda's scores.
The score are: 64, 65, 63, 66, 60, 65, 66, 68, 69, 66, 63.
To find the mean of her scores we will add all the scores and divide by the number of tests.



Therefore, the mean of Linda's scores is 65.