Question

What is the average of the squares of the numbers from 1 to 10?

• A. 38.5
• B. 36.5
• C. 41.5
• D. 39.5

Answer 1

Answer:

A. 38.5

Read Explanation:

Average= (n+1)(2n+1)/6 =(10+1) (2x10+1)/ 6 =11 x 21/6 = 38.5

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