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Delvig [45]
3 years ago
15

11 black balls and 14 white balls are placed in an urn. two balls are then drawn in succession. what is the probability that the

second ball drawn is a white ball if the second ball is drawn without replacing the first ball?
Mathematics
2 answers:
Ulleksa [173]3 years ago
6 0
11/25(14/24)+14/25(13/24)=
=154/600+182/600=
=336/600=14/25
torisob [31]3 years ago
6 0

|\Omega|=25\cdot24=600\\ |A|=11\cdot14+14\cdot13=154+182=336\\\\ P(A)=\dfrac{336}{600}=\dfrac{14}{25}=56\%

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