selbyahnbergs
contestada

Mr. Henry has a class of 18 girls and 12 boys. He chose one student to come to the front and then chose a second student from those still seated. What is the probability that both students chosen are girls?

Respuesta :

kim1025
18+12=number of students in his class (30)
probability that they are girls is 18(#of girls)/30(total students)
AngelxDevil
Hi there!

The probability of choosing the first girl would be 18/30.

The probability of choosing the second girl would be 17/29.

The probability of choosing both girls would be 51/145 because 18/30 x 17/29 is 306/870 simplified to 51/145.

So the probability of choosing both girls would be 51/145.

Hope this helps :D

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