Question
I recently competed in a 5K race that had a mean finish time of= 25.3 minutes and standard deviation= 4.8 minutes.The finish times were normally
I recently competed in a 5K race that had a mean finish time of= 25.3 minutes and standard deviation= 4.8 minutes.The finish times were normally distributed.
if my finish time was 23.5 minutes,
a)Calculate the z-score for my time.
b)What percentage of runners had a faster finish time?
c)If I would like to finish in the top 25%, how much faster would I need to complete the race?
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Mathematical Excursions
Authors: Richard N Aufmann, , Joanne Lockwood, Richard D Nation, Daniel K Clegg
3rd Edition
1305161793, 9781305161795
