A group of doctors were interested in testing diets intended to lower blood pressure. Before they

began their experiment, they randomly selected a group of 50 people and determined their BMI. The

results are provided below.

a) Use classes with endpoints 15, 16, 17, ... , 34 and count the number of people in each class.

b) Use SPSS or Excel to DISPLAY bar chart for this summarized data. Make the gap width zero to

obtain a histogram. Copy and paste your chart into your Word document.

c) Describe the shape of the histogram.

Subject BMI Percent Fat

1 21.95 28.7

2 27.75 32.3

3 25.09 25.8

4 19.23 19.6

5 19.60 22.4

6 20.31 26.4

7 22.29 32.7

8 28.65 33.5

9 19.47 23.4

10 21.44 21.8

11 26.85 37.1

12 21.88 30.9

13 23.90 36.3

14 21.54 29.8

15 22.61 31.9

16 18.91 21.6

17 18.46 24.6

18 17.05 20.5

19 17.70 24.6

20 16.61 18.1

21 16.94 22.9

22 18.77 26.2

23 18.39 27.2

24 17.86 17.7

25 17.98 20.8

26 15.37 17.5

27 18.84 21.3

28 15.82 18.7

29 17.71 28.8

30 14.99 17.1

31 16.75 26.2

32 16.46 20.4

33 15.87 19.5

34 18.08 21.7

35 15.58 18.1

36 17.15 29.8

37 15.82 20.6

38 18.61 22.9

39 16.66 19.3

40 20.83 27.9

41 24.56 36.4

42 20.19 25.1

43 24.13 39.7

44 20.86 33.6

45 33.57 46.8

46 29.14 38.9

47 26.17 36.7

48 31.46 38.5

49 19.08 23.3

50 23.54 35.9