Listed below are pulse rates (beats per minute) from samples of adult males and females. Does there appear to be a difference? Find the coefficient of variation for each of the two samples; then compare the variation.

Male Female89 6871 8060 8068 7070 7650 8662 8756 8482 8768 8762 9461 70100 8756 8165 77

There appears to be a difference between the pulse rates from samples of adult males and females. The average pulse rate of males is 63.75 while that of females is 75.875.

Coefficient of Variation (male) = 33.44%

Coefficient of variation (female) = 28.35%

Step-by-step explanation:

Mean (male) =

Mean (female) =

Standard Deviation (male) =

Standard Deviation (female) =

Coefficient of Variation  =

For male, CV = %

For female, CV = %

Comparison : Pulse rates of males has more variability than that of females since it has a greater coefficient of variation.

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step-by-step explanation:

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step-by-step explanation: