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Find the probability of each event. Answer IN FRACTION form.

A class has four girls and two boys. If the teacher randomly picks four students, what is the probability that she will pick all girls?

1 Answer

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Total amount of students = 6

Total amount of girls = 4

So, chance of picking a girl first time is 4/6 or 2/3 chance

But remember! The girl is picked, and we do not want to replace her back into the set. So total amount of students drop to 5 and girls drop to 3

So using that logic, The probability of choosing all girls = 4/6 * 3/5 * 2/4 * 1/3 = 1/15.

User Dmitry Vasilev
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