Listed Below Are the Systolic Blood Pressures (In Mm Hg) $\begin{array} { l l l l l l l } \text { Men aged 20-29: } 117 & 122 & 129 & 118 & 131 & 123 \end{array}$

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. $\begin{array} { l l l l l l l } \text { Men aged 20-29: } 117 & 122 & 129 & 118 & 131 & 123 \end{array}$
$\begin{array} { l l l l l l l } \text { Men aged 60-69: } 130 & 153 & 141 & 125 & 164 & 139 \end{array}$ 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: 4.6\% Men aged 60-69: $10.2 \%$
There is substantially more variation in blood pressures of the men aged 60-69.
B) Men aged 20-29: 7.6\% Men aged 60-69: 4.7\%
There is more variation in blood pressures of the men aged $20 - 29$ .
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: 4.8\% Men aged 60-69: 10.6\%
There is substantially more variation in blood pressures of the men aged 60-69.