paulusl19
21.06.2019 •
Mathematics
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
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Ответ:
Chris: -1.1315.
Karen: -1.6038.
Step-by-step explanation:
The z-score = (x - m) / d where m = the mean, d = the standard deviation and x is the individual score.
Chris: z-score = (185.13 - 185.52) / 0.327
= -1.1315.
Karen: z-score = (110.13 - 110.3) / 0.106
= -1.6038.
Ответ: