Question

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. Men aged 20-29: 125 129 118 Men aged 60-69: 129 148 142 125 164 139 116 131 123 O A. Men aged 20-29: 5.0% Men aged 60-69: 10.3% There is substantially more variation in blood pressures of the men aged 60-69 OC. Men aged 20-29: 7.9% Men aged 60-69: 4.5% There is more variation in blood pressures of the men aged 20-29. B. Men aged 20-29: 4.8% Men aged 60-69: 9.9% There is substantially more variation in blood pressures of the men aged 60-69. OD. Men aged 20-29: 4.5% Men aged 60-69: 7.9% There is substantially more variation in blood pressures of the men aged 60-69.

Answer 1

classmate Page Given that the following table 1/6 123 125 129 X Men aged 2.0-29 7 men aged 60-69 1 118 13/ 125 164 129 148 132 142 Cafficient of variation in men aged 20.29 x 100 ñ where Ex = h & (xi-x² x = t &xi Ex = 5.921 X = 123.667 and Gy 0.0 14.020, 7 141:1662 Coefficient 20-29 of variation in men aged 5.921 Xloo 123.667 4.87 in and Lariations coefficient of од слее с ботя 14.020 X100 141:1667 9.9% «Thuy option B is correct men aged 20-29 4.8 / men aged 60-69 9.9 % Thore is substantially more Laviation pressure of the men aged 60-69 is blood CS Scanned with Can Scanner