Question

how to find mean








.
.
.
Mass (Mgrams)
Number of students
1
.
11
li
it
TH
0 < M < 200
5.
H
1
.
.
11
11
11
it 10
200<< MS 300
li
6.
ill
!!!
.
Intl
11 il
It
11
1
41
11
It
11
li
300<< M < 350
TS
!!
jil
14
litli
til !
!!
li
!
It
350°<MS 400
12
illil
Il !! li ili
il !!! li
HE
!!!!!
li!
il
4'00' < SOO
lil
li
9
11
!!!
illil
99.5-1​

Answer 1

Answer:

Formula for mean= Sum of observations/ Number of observations