An urn contains 12 white balls and 14 yellow balls. If you draw 4 balls without...

Question

Question

An urn contains 12 white balls and 14 yellow balls. If you draw 4 balls without replacement, what is the probability of drawing 4 white balls?

math Statistics-And-Probability

Answer 1

Answer #1

An urn contain total=12 white balls + 14 yellow balls = 26 balls

We can use here combination rule for draw 4 balls without replacement from white balls .

$121 : 495 41(12-1)! C( 12.4)$

draw 4 balls without replacement from total balls .

$C(26.4) = 261 41(26-41-14950$

Therefore, by using definition of probability.

$495 14950$

=0.0331

Answer 2

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