Listed Below Are the Systolic Blood Pressures (In Mm Hg) $117 \quad 122 \quad 129 \quad 118 \quad 131 \quad 123$

question 29

Multiple Choice

Listed below are the systolic blood pressures (in mm Hg) for a sample of men aged 20-29 years and for a sample of men aged 60-69 years.
Men aged 20-29: $117 \quad 122 \quad 129 \quad 118 \quad 131 \quad 123$
Men aged 60-69: $130 \quad 153 \quad 141 \quad 125 \quad 164 \quad 139$
Find the coefficient of variation for each of the two sets of data, then compare the variation Round results to one decimal place.

• A) Men aged 20-29: 4.8% Men aged 60-69: 10.6% There is substantially more variation in blood pressures of the men aged 60-69 .
• B) Men aged 20-29: 4.6% Men aged 60-69: 10.2% There is substantially more variation in blood pressures of the men aged 60-69 .
• C) Men aged 20-29: 7.6% Men aged 60-69: 4.7% There is more variation in blood pressures of the men aged 20-29 .
• D) Men aged 20-29: 4.4% Men aged 60-69: 8.3% There is substantially more variation in blood pressures of the men aged 60-69 .

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Definitions:

Linear Regression

A statistical method that models the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Regression Analysis

A statistical method for estimating the relationships among variables, often used to predict the value of a dependent variable based on the values of one or more independent variables.

Unknown Value

A value in a dataset or an equation that is not known or has not been determined.

Statistical Method

A collection of mathematical procedures and principles used for analyzing, interpreting, and presenting empirical data.