chancegodwin5
12.12.2021 •
Mathematics
Scores for a civil service exam are normally distributed, with a standard deviation of 8. To be eligible for civil service employment, you must score in the top 10%. If the lowest score you can earn and still be eligible for employment is a 90, what is the mean score for the exam?
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Ответ:
105 m
Step-by-step explanation:
distance/time = (63 m)/(3 s) = d/(5 s)
Multiplying by (5 s) gives the distance d as ...
d = (5 s)(63 m)/(3 s) = 105 m
An ostrich can run 105 m in 5 seconds.