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The ages of students in a school are normally distributed with a mean of 15 years and a standard deviation of 2 years. Approximately what percent of the students are between 14 and 18 years old? a. 24.

asked Nov 13, 2017

Mathematics
high-school

2 answers

1 vote

58.7k views

Explain why the two equations below have the same solutions. x + 3y = −1 −2x − 6y = 2

asked Sep 3, 2016

Mathematics
high-school

1 answer

5 votes

31.0k views

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