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ira [324]
3 years ago
5

A group of 625 students has a mean age of 15.8 years with a standard deviation of 0.6 years. The ages are normally distributed.

How many students are younger than 16.2 years? Express answer to the nearest student.
Mathematics
1 answer:
Tom [10]3 years ago
7 0
16.2-15.8/0.6=0.6667. Use normalcdf() to find the percentage from -999 to 0.6777 which is 0.7476*625=467
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