Answer:
75
Step-by-step explanation:
the mean is basically the average of the numbers.
to calculate the mean, first you'll add up all the numbers
67 + 64 + 88 + 81 + 75 = 375
then, youll divide the sum of those numbers by the total amount of numbers
so in this case, 375/5
375/5 = 75
have a nice day
