Find the average of squares of natural numbers till 7.
Answer & explanation
Correct answer: option 2
Average of squares = \(\frac{( x+1)(2x+1)}{6}\)
= \(\frac{(7+1)(2×7+1)}{6}\)
= \(\frac{(8×15)}{6}\)
= 20
Find the average of squares of natural numbers till 7.
Correct answer: option 2
Average of squares = \(\frac{( x+1)(2x+1)}{6}\)
= \(\frac{(7+1)(2×7+1)}{6}\)
= \(\frac{(8×15)}{6}\)
= 20