The weather department has predicted that a thunderstorm is likely to occur on a certain day .Suppose you have to go out on that day. Would you carry an umbrella ? Explain.

Your parents are going to buy a house.They have been offered one on the roadside and another three lanes away from the roadside.Which house would you suggest your parents should buy ? Explain your answer.

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 : You were asked to prepare a frequency distribution table, regarding the concentration of sulphur dioxide in the air in parts per million (ppm) of a certain city for 30 days . Using this table, find the probability of the concentration of sulphur dioxide in the interval 0.12-0.16 on any of these days.