Multiple Choice
Jessica Ennis won the Olympic heptathlon in London, but how did she perform in the 100 m hurdles, high jump and long jump compared with the other athletes? Using the data below, calculate Jess Ennis' z-scores for the three previously mentioned events. 100 m Hurdles
A) -2.3
B) -1.3
C) 2.3
D) 1.3
Correct Answer:

Verified
Correct Answer:
Verified
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