ক্লাস 11ম অধ্যায় 07 ইকুলিব্রিয়াম

Ex-2 Q.01 to 07

Ex-2 Q.01 to 07

30.94 + 0.7 = ?

Lecture 07

Q.01 to 07

7/(100) is equal to 7.1 (b) 7.01 (c) 0.7 (d) 0.07

2.005 xx 1.07 xx 8.67 = ?

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?

A study was conducted to find out the concentration of sulphur dioxide in the air i n 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 For how many days, was the concentration of sulphur dioxide more than 0.11 parts per million?