Question

Which histogram represents the data? 8, 9, 10, 11, 11, 14, 18, 28, 28, 29, 40, 41, 41, 44, 45, 47, 55

Answer 1

The histogram is attached (ignore the poorly erased mark!).

I used bars of width 10. There are 3 values from 0-9; 4 values from 10-19; 3 values from 20-29; 0 values from 30-39; 6 values from 40-49; and 1 value from 50-59.

Answer 2

We have to make a histogram that represents the given data:

8, 9, 10, 11, 11, 14, 18, 28, 28, 29, 40, 41, 41, 44, 45, 47, 55

Firstly we will make a frequency table that represents the data as:

Data Point Frequency

8 1

9 1

10 1

11 2

14 1

18 1

28 2

29 1

40 1

41 2

44 1

45 1

47 1

55 1

Now we make a class interval of length 10 as:

Class-interval Frequency

1-10 3

11-20 4

21-30 3

31-40 1

41-50 5

51-60 1