Mathematics, 07.04.2020 01:23 iBrain

Joan’s finishing time for the Bolder Boulder 10K race was 1.73 standard deviations faster than the women’s average for her age group. There were 410 women who ran in her age group. Assuming a normal distribution, how many women ran faster than Joan?

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Joan’s finishing time for the Bolder Boulder 10K race was 1.73 standard deviations faster than the w...