A sample of blood pressure measurements is taken

brecruicswbp

brecruicswbp

Answered question

2022-03-18

A sample of blood pressure measurements is taken for a group of​ adults, and those values​ (mm Hg) are listed below. The values are matched so that 10 subjects each have a systolic and diastolic measurement. Find the coefficient of variation for each of the two​ samples; then compare the variation.
Systolic 116 126 159 97 156 122 115 135 125 121
Diastolic 80 76 75 52 88 89 58 65 70 81
The coefficient of variation for the systolic measurements is _____%
​(Type an integer or decimal rounded to one decimal place as​ needed.)

Answer & Explanation

Ettrapinithr

Ettrapinithr

Beginner2022-03-19Added 7 answers

Systolic measurement:
Mean=127.2, from the excel function, =AVERAGE(A2:A11)
standard deviation=18.7368, from the excel function, =STDEV.S(A2:A11)
Coefficient of variation:
CV=Standard deviationMean100%
=18.7368127.2100%
=14.7%
Diastolic measurement:
Mean=73.4, from the excel function, =AVERAGE(B2:B11)
standard deviation=12.222, from the excel function, =STDEV.S(B2:B11)
Coefficient of variation:
CV=Standard deviationMean100%
=12.22273.4100%
=16.7%
The variation for Systolic measurement is less than the variation for Diastolic measurement.
Setartetaliffvz5

Setartetaliffvz5

Beginner2022-03-20Added 3 answers

It helped a lot)

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