Answer:
86.86
Explanation:
Another word for mean is average. To find the mean or average, we add up all the numbers and then divide by the number of numbers
There are 7 scores
Mean = (88+91+89+94+90+64+ 92)/7
= 608/7
=86.85714286
To 2 decimal places ( we have to round to be accurate to 2 decimal places)
86.86