Q12. In Q.5, Exercise 14.2, you were asked to prepare a frequency distribution table, regarding the concentration of sulfur dioxide in the air in parts per million of a certain city for30 days. Using this table, find the probability of the concentration of sulfur dioxide in the interval 0.12 - 0.16 on any of these days.
The data is representing the concentration of sulfur dioxide in the air in parts per million (ppm) of a city. The data obtained for a month of 30 days is as follows:
Total no. of days =30
No. of days in which Conc. of sulfur dioxide in the interval 0.12 - 0.16 = 2
P(Conc. of sulphur dioxide in the interval 0.12 - 0.16) =2/30
Ans: 1/15