Question

the hieghts of five runners are 160 cm,137 cm,149 cm,153 cm and 161 cm respectively.
find the mean hieght of per runner?

Answer 1

They have asked us to find the mean or the average.

It is nothing but the (sum of all the observations)/(total number of observations).

=(160+137+149+153+161)/(5)

=760/5

=152.

Answer 2

Answer:

=> The mean height is $152$ cm.

Step-by-step explanation:

Given height of runners:-

1st runner = $160$ cm

2nd runner = $137$ cm

3rd runner = $149$ cm

4rt runner = $161$ cm

Number of runner ( n ) = $5$

To find:- Mean = ?

For calculating the mean,

The formula to be used:

$=\frac{\text { Sum of height of runners }}{\text { Number of runners}}$

$=\frac{(160 + 137 + 149 + 153 + 161)}{5 }$

By adding all the terms in the numerator,

$=\frac{760}{5}$

= 152 cm

Hence, the required mean is 152 cm.