Question:
What is the average of the squares of the numbers from 1 to 10?
A38.5
B36.5
C41.5
D39.5
Answer:
A. 38.5
Explanation:
Average= (n+1)(2n+1)/6 =(10+1) (2x10+1)/ 6 =11 x 21/6 = 38.5
Question:
A38.5
B36.5
C41.5
D39.5
Answer:
Average= (n+1)(2n+1)/6 =(10+1) (2x10+1)/ 6 =11 x 21/6 = 38.5
Related Questions: