Running speed for adult men of a certain age group is known to follow a normal distribution, with mean 6.7 miles per hou

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Running speed for adult men of a certain age group is known to follow a normal distribution, with mean 6.7 miles per hou

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Running Speed For Adult Men Of A Certain Age Group Is Known To Follow A Normal Distribution With Mean 6 7 Miles Per Hou 1
Running Speed For Adult Men Of A Certain Age Group Is Known To Follow A Normal Distribution With Mean 6 7 Miles Per Hou 1 (50.49 KiB) Viewed 361 times
Running speed for adult men of a certain age group is known to follow a normal distribution, with mean 6.7 miles per hour and standard deviation 1.3. Jim claims he run faster than 80% of adult men in this age group. What speed would he need to be able to run for this to be the case? Give your answer accurate to two digits past the decimal point.
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