Question

The following are heights of a rural middle school’s eighth graders. The heights are rounded to...

The following are heights of a rural middle school’s eighth graders. The heights are rounded to the nearest inch. Use this information for questions 6-10.

50

53

54

56

58

59

60

60

62

63

51

53

55

56

58

59

60

61

62

63

51

53

55

57

58

59

60

61

62

63

52

54

56

57

58

59

60

61

62

64

52

54

56

57

58

59

60

62

63

64

6.) Are the heights quantitative data or categorical data?

Quantitative

7.) What is the level of measurement of the heights? (nominal, ordinal, interval, or ratio)

Ratio

8.) If you constructed a frequency distribution with 5 classes, what would be the class width?

    50-58= 8

9.) Write the definition of class width below (do not write the formula).

The difference between two consecutive upper and lower class limits

10.) Construct a frequency distribution with 5 classes by filling in the boxes below.

Heights of a Rural Middle School’s Eighth Graders (nearest inch)

Height

Midpoint

Frequency

Relative Frequency

The following are heights of a rural middle school’s eighth graders. The heights are rounded to the nearest inch. Use this information for questions 6-10.

50

53

54

56

58

59

60

60

62

63

51

53

55

56

58

59

60

61

62

63

51

53

55

57

58

59

60

61

62

63

52

54

56

57

58

59

60

61

62

64

52

54

56

57

58

59

60

62

63

64

6.) Are the heights quantitative data or categorical data?

Quantitative

7.) What is the level of measurement of the heights? (nominal, ordinal, interval, or ratio)

Ratio

8.) If you constructed a frequency distribution with 5 classes, what would be the class width?

    50-58= 8

9.) Write the definition of class width below (do not write the formula).

The difference between two consecutive upper and lower class limits

10.) Construct a frequency distribution with 5 classes by filling in the boxes below.

Heights of a Rural Middle School’s Eighth Graders (nearest inch)

Height

Midpoint

Frequency

Relative Frequency

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