Question

To find out the concentration of So2 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 :
Concentration of So2 (in PPM) Frequency
0.00-0.04 4
0.04-0.08 9
0.08-0.12 9
0.12-0.16 2
0.16-0.20 4
0.20-0.24 2

Find the mean concentration of So2 in the Air.

Answer 1

Answer:

it is a real number