Wierzycaz

2021-09-26

The following two-way table displays information about favorite sports cars that resulted from a survey given to all students at Shore High School.

$\begin{array}{|ccccc|}\hline & \text{Corvette (C)}& \text{Porsche (P)}& \text{Ferrari (F)}& \text{Total}\\ \text{Boys (B)}& 90& 60& 120& 270\\ \text{Girls (G)}& 110& 141& 79& 330\\ \text{Total}& 200& 201& 199& 600\\ \hline\end{array}$

What is the probability that a randomly selected student from this school is a boy?

Brighton

Formula: P(B) = (total number of boys) + (total)
Total number of boys = 270, total = 600,
$P\left(B\right)=\frac{270}{600}=\frac{9}{20}$

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