Question

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

Answer 1