Professor taught a few classes the following grade averages for the classes were, 82%, 86%, 91%, 74%, calculate the mean?

Convert all to decimal

82%=0.82

86%=0.86

91%=0.91

74%=0.74

Add them

3.33

Divide by 4

3.33/4= 0.8325 will be your mean

Hi Annag88,

Your Question:

Professor taught a few classes the following grade averages for the classes were, 82%, 86%, 91%, 74%, calculate the mean?

Definition:

Mean - "is the average of the numbers: a calculated "central" value of a set of numbers. To calculate it: add up all the numbers, then divide by how many numbers there are."

Solution:

= 333 ÷ 4

= 83.25%

Final

Mean = 83.25%

to determine the unit cost your would divide the total cost by the number sold.

7 bagels for $4.41       $4.41/7 = $.63 each at fresh side

5 bagels for $3.60         $3.60/5 = $.72 each at value mart

answer: 0.26

i used the calculator on google