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The average woman her late 30s can run a 36 minute 5k. If the standard deviation is 4 minutes, what proportion of late 30s women

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The average woman her late 30s can run a 36 minute 5k. If the standard deviation is 4 minutes, what proportion of late 30s women can we expect to run a faster than 30 minute 5k? Round your answer to three places beyond the decimal. Should look like 0.XXX Link: Z-Table

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