Provide an appropriate response.
-Find the z-score corresponding to the given value and use the z-score to determine whether the value is unusual. Consider a score to be unusual if it is at least three standard deviations above or
Below the mean. Round the z-score to one decimal place, if necessary.
A time for the 100 meter sprint of 20.2 seconds at a school where the mean time for the 100 meter
Sprint is 17.5 seconds and the standard deviation is 2.1 seconds.
A) 2.7; unusual
B) 1.3; not unusual
C) 1.3; unusual
D) -1.3; not unusual
Correct Answer:
Verified
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