There are 25 stones in a jar and 15 of them are brown. If a stone is chosen, what is the probability that it is not brown?

Engineering

Mathematics

Conditional Probability

Question

$\frac{2}{5}$

$\frac{10}{20}$

$\frac{15}{20}$

$\frac{1}{2}$

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From the problem,

Using complement, we know

P (not getting the brown) =

1 - \frac{15}{25} = \frac{2}{5}

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