ক্লাস 11ম অধ্যায় 08 রেডক্স

Ex.-4 Q.01 to 08

Ex-4a Q 01 to 08

01 : 08 : : 16 : ?

Lecture 08

Q 01 to 08

Ex-2 Q 5 to 08

0.8 ÷3.7872

Ex-2 Q.08 to 19

A study was conducted to find out the concentration of sulphur dioxide in the air in parts per million (ppm) of a certain city. The data obtained for 30 days is as follows: 0.03 0.08 0.08 0.09 0.04 0.17 0.16 0.05 0.02 0.06 0.18 0.20 0.11 0.08 0.12 0.13 0.22 0.07 0.08 0.01 0.10 0.06 0.09 0.18 0.11 0.07 0.05 0.07 0.01 0.04 (i) Make a grouped frequency distribution table for this data with class intervals as 0.00 - 0.04, 0.04 - 0.08, and so on. (ii) For how many days, was the concentration of sulphur dioxide more than 0.11 parts per million?