Question

To find out the concentration of So, in the air (in parts per million, i.e., ppm), the data
was collected for 30 localities in a certain city and is presented below:
by a suitable method.
SS
in
Concentration of so, in ppm
0.00-0,04 0,04-0.08 0.08-0.12 0.12-0.16 0.16-0.20 0.20-0.24
Frequency
4
9
9
2
Find the mean concentration of So, in the air.
4
2.​

Answer 1

Step-by-step explanation:

dp do do so Lo laal gp all dal al all all bhi weds go hdndhdnhsbdhdmsydhdbzgabfi kk dkd