Example 1

In the 2012 Olympics, the mean finishing time for the men’s 100-meter dash finals was 10.10 seconds and the standard deviation was 0.72 second. Usain Bolt won the gold medal, with a time of 9.63 seconds. Assume a normal distribution. What was Usain Bolt’s [i]z[/i]-score?


Walch Education

Material Type
standard-deviation  normal-distribution  z-score  distribution  standard  deviation 
Target Group (Age)
15 – 18
English (United States)
© 2018 International GeoGebra Institute