Find the mean of the following data:

x	10	30	50	70	89
f	7	8	10	15	10

Given:

To do:

We have to find the mean of the given data.
Solution:

We know that,

Mean of a given data is given by $\frac{\sum{xf}}{\sum{f}}$.

Therefore,

The mean of the given data $=\frac{10\times7+30\times8+50\times10+70\times15+89\times10}{7+8+10+15+10}$

$=\frac{70+240+500+1050+890}{50}$

$=\frac{2750}{50}$

$=55$

The mean of the given data is 55.

Tutorialspoint

Simply Easy Learning

Updated on: 10-Oct-2022

25 Views

Kickstart Your Career

Get certified by completing the course

Get Started