In a survey twentyseven voters were asked their ages The res

In a survey twenty-seven voters were asked their ages. The results are shown below.

43

63

50

51

62

21

32

69

59

56

67

46

57

66

35

53

31

68

28

66

35

58

45

48

61

47

66

Use 5 classes beginning with a lower limit of 20 and a class width of 10 to find the lower class limits.

29, 39, 49, 59, 69

20, 30, 40, 50, 60

20, 31, 41, 51, 61

19.5, 29.5, 39.5, 49.5, 59.5

Solution

Frist lower limit is 20 (given), and next is 30 (because class width is 10), thus lower limits are:

20, 30, 40, 50, 60