user434568
user434568
27.02.2020 • 
Mathematics

Andrea and Ashley are middle distance runner's for the schools traffic and FaceTime in the 500 m race are approximately normally distributed with a mean of 62 seconds in a standard of deviation of 0.8 seconds. The school record for the 400m is 60 seconds what is the probability the end of your breaks the record in her next race,

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