EM-2918

Single events and sample space

E Math · Secondary 4 · Medium · Single events and sample space

A group of 40 students took a test. 18 were boys and 22 were girls.
One student is chosen at random.

Find the probability that the student is a girl. Give your answer as a fraction in its simplest form.

$\frac{9}{20}$
$\frac{11}{20}$
$\frac{22}{60}$
$\frac{11}{40}$

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