(b) A bag contains 4 white and 3 yellow balls. If 4 balls are drawn at random, what is the probability that 2 are white and 2 are yellow? [5+5 = 10]
Answers
Answered by
0
Answer:
1
Step-by-step explanation:
7 books in book
4 books rendomly
2 white andv2 yellow
possibility 1
Answered by
0
Answer:
A bag contains 40 balls out of which 10 balls are white,
16 balls are red and 14 balls are black
ie n(white)=10
n(red)= 16
n(black) =14
Probability that the ball drawn is black =
40
14
=
20
7
Hence probability that the ball drawn is not black = 1−
20
7
=
20
20−7
=
20
14
=
10
7
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