Respuesta :
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:
[tex]\frac{82 + 86 + 91 + 74}{4} = \frac{333}{4}[/tex]
= 333 ÷ 4
= 83.25%
Final Answer:
Mean = 83.25%
