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A college calculus class consists of 22 females and 18 males. There are 10 biology majors, 18 mathematics majors, and 12 computer science majors. If a student is chosen at random, what is the probability that the student is a female? (Enter your probability as a fraction.) 
 

=______________

What is the probability that the student is a mathematics major? (Enter your probability as a fraction.) 

 

=__________________

Guest Sep 30, 2018
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\(P[\text{random student is female}] = \dfrac{22}{22+18} = \dfrac{22}{40}=\dfrac{11}{20}\)

 

\(P[\text{random student is Mathematics major}] = \dfrac{18}{40} = \dfrac{9}{20}\)

Rom  Oct 1, 2018

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