The enrolment in a school during six consecutive years was as follows:

1555, 1670, 1750, 2013, 2540,2820

Find the mean enrolment of the school for this period.

Here,

We have to find the mean of the given enrolments of the school

Now,

At first,

We’ll find the sum of all the observations

Thus,

Sum of all the observations = 1555 + 1670 + 1750 + 2013 + 2540 + 2820

= 12348

Now,

Total number of observations = 6

Hence,

Mean enrolments =

=

= 2058

24