Mathematics, 04.12.2020 20:30, ZachLaVine2016

1. In a gym class, students have to run a mile. For a 6th grade class, the average was 512 seconds with a standard deviation of 68.
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a) What is the probability of a student running less than 400 seconds?
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b) What is the probability of a student running more than 610 seconds?
c) What is the probability of a student running between 475 and 525 seconds?
2. If Biology test scores were normally distributed with a mean a 78 and a standard deviation

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1. In a gym class, students have to run a mile. For a 6th grade class, the average was 512 seconds...