The finish times (in minutes) for runners in three-mile courses at Events A and B are shown

Question:

The finish times (in minutes) for runners in three-mile courses at Events A and B are shown in Fig. 73. At each event, the women€™s mean time was 19 minutes and the men€™s mean time was 17 minutes. At one event, the standard deviations for the women€™s times and the men€™s times were both 0.5 minute. At the other event, the standard deviations for the women€™s times and the men€™s times were both 2.5 minutes.

a. At which Event, A or B, were the standard deviations for women and men both 0.5 minutes?
b. At which Event, A or B, were the standard deviations for women and men both 2.5 minutes?
c. Refer to the given means and standard deviations to explain why the distribution for Event A is unimodal but the distribution for Event B is bimodal.
d. When determining how different women€™s times are from men€™s times, explain why it is not enough to simply compare the mean times.

Distribution
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