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Mathematics 9 Online
OpenStudy (anonymous):

There are 24 children in a class, 16 brown-haired and 8 black-haired. Two students are randomly selected find the the probability of picking 2 brown-haired children.

OpenStudy (anonymous):

16c2/24c2

OpenStudy (anonymous):

What do you mean?

OpenStudy (anonymous):

to get 2 brown-haired u can get them from 16 brown-haired only so no of favourable chances are 16c2 total chances are 24c2 as there totally 24 no of pepple

OpenStudy (anonymous):

(16/24)(15/23)

OpenStudy (anonymous):

= 10/23

OpenStudy (anonymous):

Thank you!

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