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.

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Solution

The enrolment in a school for six consecutive years are $1555, 1670, 1750, 2013, 2540, 2820$
Mean enrolment $= \frac{S u m o f a l l o b s e r v a t i o n s}{N u m b e r o f o b s e r v a t i o n s}$
$= \frac{(1555 + 1670 + 1750 + 2013 + 2540 + 2820)}{6} = \frac{12348}{6} = 2058$
Hence, the mean enrolment of the school for this period is $2058 .$

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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.

The enrolment in a school for six consecutive years are1555,1670,1750,2013,2540,2820Mean enrolment =SumofallobservationsNumberofobservations =(1555+1670+1750+2013+2540+2820)6=123486=2058Hence, the mean enrolment of the school for this period is 2058.

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.