Average =
Sum of Data / no. of data
Average for no. of consecutive =
1st term + last term / 2
Formula, to find, sum of “n” natural no.
n(n+1) / 2
Formula, to find, average of “n” natural no.
(n+1) / 2
Formula, to find, sum of “n” odd no.
n^2
Formula, to find, average of “n” odd no.
n
Formula, to find, sum of “n” even no.
n(n+1)
Formula, to find, average of “n” even no.
(n+1)
n(n+1) / 2, it used is when asked to find
sum of “n” natural no.
(n+1) / 2, it used is when asked to find
average of “n” natural no.
n^2, it used is when asked to find
sum of “n” odd no.
n, it used is when asked to find
average of “n” odd no.
n(n+1), it used is when asked to find
sum of “n” even no.
(n+1), it used is when asked to find
average of “n” even no.