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How do I find the average of measurements in square feet

Resolved Question:

I have a list of 20 measurements that are in square feet. How do I find the average. I have been adding the measurements up and dividing by 20, however, my answer seems way off.
Submitted: 7 years ago.
Category: General
Expert:  Scott replied 7 years ago.

Hi there!

Do you mind posting the list of measurements?

Thanks,

Scott

Customer: replied 7 years ago.
Reply to Scott's Post: 72 square feet

513 square feet

286 square feet

323 square feet

575 square feet

42 square feet

217 square feet

65 square feet

123 square feet

80 square feet

180 square feet

84 square feet

28 square feet
Expert:  Scott replied 7 years ago.

Hi there,

That's 13 measurements... Do you have 7 more?

-Scott

Customer: replied 7 years ago.
Reply to Scott's Post: Those are the only measurements I need, the other numbers are not relevant to me at this time. Sorry for the confusion.
Expert:  Scott replied 7 years ago.

Hi again,

The average of those numbers is:

(72+513+286+323+575+42+217+65+123+80+180+84+28)/13

= 199.08 sq ft

Let me know if that makes sense,

Scott

Category: General
Satisfied Customers: 17710
Experience: MIT Graduate, United States Traveler, Information Finder

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