Find the Coefficient of Variation for Each of the Two $\begin{array} { l l l l l l } \text { Men aged 20-29: } 117 & 122 & 129 & 118 & 131 & 123 \end{array}$

question 46

Multiple Choice

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

• A) 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.
• B) 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.
• C) Men aged 20-29: \(4.4 \%\)
• Men aged 60-69: 8.3\%
• There is substantially more variation in blood pressures of the men aged \(60 - 69\).
• D) 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.

Identify the roles and characteristics of primary excretory structures and substances in vertebrates.

Explain the principles of osmoregulation and urine concentration in the kidney.

Describe the hormonal regulation of kidney function and its impact on blood volume and pressure.

Distinguish between the processes of reabsorption, secretion, and filtration in the nephron.

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