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A drawer contains 3 white balls and 6 black balls. Two balls are drawn out of the box at random. What is the probability that they both are black?

 Apr 21, 2022

Best Answer 

 #1
avatar+30 
+3

Probabilty oooo

First, the chance of getting 1 black ball.

\(\frac{6}{9}\) aka \(\frac{2}{3}\)

Then, the chance of getting another one.

\(\frac{5}{8}\)because you already removed one, so total is 8, and 5 black balls left.

You times \(\frac{2}{3}\)by \(\frac{5}{8}\) and you get \(\frac{10}{24}\)or \(\frac{5}{12}\)

 Apr 21, 2022
 #1
avatar+30 
+3
Best Answer

Probabilty oooo

First, the chance of getting 1 black ball.

\(\frac{6}{9}\) aka \(\frac{2}{3}\)

Then, the chance of getting another one.

\(\frac{5}{8}\)because you already removed one, so total is 8, and 5 black balls left.

You times \(\frac{2}{3}\)by \(\frac{5}{8}\) and you get \(\frac{10}{24}\)or \(\frac{5}{12}\)

IAmBadAtSolving Apr 21, 2022

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