3) Given the following frequency distribution, Diastolic Blood Pressure a) What

Question

3) Given the following frequency distribution, Diastolic Blood Pressure a) What is the class width? (mm Hg) 40-54 55-69 70-84 85-99 100 114 Frequency 27 b) What are all the lower class limits? 107 133c) What are all the class mid-points? 31 d) What are the class boundaries? 4) Given the following frequency distribution table, construct the relative frequency distribution and cumulative frequency distribution. Round relative frequency to one decimal place of a percent. Diastolic Blood Pressure Cumulative Frequency Diastolic Blood Pressure mm H 40-54 55 -69 70-84 85-99 100 114 Frequency relative frequency (mm Hg) 27 107 133 31 2 Less than Less than Less than Less tharn Less than

Explanation / Answer

Question 3

(a) Class width = 54.5 - 39.5 = 15

(b) Lower class limits are 39.5, 54.5, 69.5, 84.5, 99.5

(c) class mid- points are 47, 62, 77, 92, 107

(d) Class boundaries are

(4)

Diastolic Blood pressure Frequncy Class Width Lower Class Limit Class Mid - Point Class Boundaries 40-54 27 15 39.5 47 39.5-54.5 55-69 107 15 54.5 62 54.5-69.5 70-84 133 15 69.5 77 69.5-84.5 85-99 31 15 84.5 92 84.5-99.5 100-114 2 15 99.5 107 99.5-114.5

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