Answer
Mean of the score is 82
Explanation
Given the following set of data
68, 98, 86, 75, 86, 94, 75, 81, 75
Mean = summation of all the data / frequency of the data
Frequency = n
n = 9
Mean = 68 + 98 + 86 + 75 + 86 + 94 + 75 + 81 + 75 / 9
Mean = 738 / 9
Mean = 82
Therefore, the mean of the score is 82
