HELP PLSS
What mistake did Chris make with his questions to Trevor?

a
He didn't treat him with respect.
b
He asked him the questions in front of his mother.
c
He forgot to offer Trevor payment for his time.
d
He asked him the wrong questions.

The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score