SOLUTION: What is the average (arithmetic mean) of 8, 7, 7, 5, 3, 2, and 2? A. 3 4/7 B. 4 5/6 C. 4 6/7 D. 5 E. 6 4/5 Please show me how to this step by step.Ireally need to kn

Algebra ->  Average -> SOLUTION: What is the average (arithmetic mean) of 8, 7, 7, 5, 3, 2, and 2? A. 3 4/7 B. 4 5/6 C. 4 6/7 D. 5 E. 6 4/5 Please show me how to this step by step.Ireally need to kn      Log On


   

Question 200943: What is the average (arithmetic mean) of 8, 7, 7, 5, 3, 2, and 2?
A. 3 4/7
B. 4 5/6
C. 4 6/7
D. 5
E. 6 4/5

Please show me how to this step by step.Ireally need to know.Thank you so much!
Found 2 solutions by jim_thompson5910, josmiceli:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Simply add up the numbers and divide that sum by 7 (since there are 7 values)

Mean=%282%2B2%2B3%2B5%2B7%2B7%2B8%29%2F7=34%2F7=28%2F7%2B6%2F7=4%2B6%2F7=4%266%2F7


So the answer is C) 4%266%2F7


Note: normally the mean is represented in decimal form.



Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Simply add up the total of the data and divide
that result by the number of data samples.
I can say
d%5B1%5D+=+8
d%5B2%5D+=+7
d%5B3%5D+=+7
d%5B4%5D+=+5
d%5B5%5D+=+3
d%5B6%5D+=+2
d%5B7%5D+=+2
The average is:

Now fill in the data values
%288+%2B+7+%2B+7+%2B+5+%2B+3+%2B+2+%2B+2%29%2F7
34%2F7
The average (or mean) is 4 6/7
The answer is C.