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

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.