Weights of parcels in a transport office are given below.
Weight (kg) $50$ $65$ $75$ $90$ $110$ $120$
No of parcels $25$ $34$ $38$ $40$ $47$ $16$
Find the mean weight of the parcels.

Open in App

Solution

Weight $(x_{i})$ Number of parcels $(f_{i})$ $f_{i} x_{i}$
-------------------------------------------------------------------------
50 25 1250
65 34 2210
75 38 2850
90 40 3600
110 47 5170
120 16 1920
---------------------------------------------------------------
Total : $\sum f_{i} = 200$ $\sum f_{i} x_{i} = 17000$

$\Rightarrow M e a n = \frac{\sum f_{i} x_{i}}{\sum f_{i}}$

$\Rightarrow M e a n = \frac{17000}{200}$

$\Rightarrow M e a n = 85$

The mean weight of parcel is $85 K g$

Suggest Corrections

Similar questions

K i l o g r a m s

12

0.56, 1.24, 0.17, 1.33, 4.56, 0.95, 1.05, 1.22, 0.35, 0.66, 1.28

\frac{1}{5}

There are four parcels and five pos offices. In how many different ways can tl parcels be sent by registered post ?

Join BYJU'S Learning Program

Weight (kg)	$50$	$65$	$75$	$90$	$110$	$120$
No of parcels	$25$	$34$	$38$	$40$	$47$	$16$