Question

The distance (in km) of 40 engineers from their residence to their place of

work were found as follows:

5 3 10 20 25 11 13 7 12 31

19 10 12 17 18 11 32 17 16 2

7 9 7 8 3 5 12 15 18 3

12 14 2 9 6 15 15 7 6 12

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) and draw histogram

of the given data.​

Answer 1

Answer:

Distance (in km.) No. of engineers

Less than 7 km. 9

More than 7 km. 31

Total 40

Total number of engineers =40

(i) Number of engineers living less than 7km from their place of work =9

P=

40

9

(ii) Number of engineers living more than or equal to 7km from their place of work =40−9=31

P=

40

31

(iii) Number of engineers living within

2

1

km from her place of work =0

P=

40

0

=0

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