Obtain and interpret fortieth percentile for finishing time


As a report in runner's world magazine, the times of the finishers in the new york city 10 km run are normally distributed with mean 61 minutes and standard deviation 9 minutes part A) Determine the percentage of finishers with times between 50 and 70 minutes part B)Find the percentage of finishers with times less than 75 minutes part C)obtain and interpret the 40th percentile for the finishing times and part D) find and interpret the eighth decile for the finishing times.

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Basic Statistics: Obtain and interpret fortieth percentile for finishing time
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