The distance (in km) of 40 engineers from their residence to their place of work were found as follows:

 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

Since, here data of 40 observation are given,

So, we need to group the data into class size of 5 and then we make the grouped frequency distribution table by using tally marks.

From the above-grouped frequency distribution table, we found that

(i) 36 engineers have house below 20 km.

(ii) 5 engineers have their house below 5 km.