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Mathematics 17 Online
OpenStudy (dedi):

The times of all 15 year olds who run a certain race are approximately normally distributed with a given mean mc026-1.jpg = 18 sec and standard deviation mc026-2.jpg = 1.2 sec. What percentage of the runners have times less than 14.4 sec? A)0.15% B)0.30% C)0.60% D)2.50%

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