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balandron [24]
3 years ago
8

A bag holds 11 beads. 7 are red, the rest are white. Two beads are taken at random from the bag. What is the probability that on

e bead of each colour is taken? You must show your working.
Got 2/4 marks for 14/55
Mathematics
2 answers:
aksik [14]3 years ago
5 0

Answer:

56/110=14/55

Step-by-step explanation:

you get 4 marks!

put me as brainiest please!

Flura [38]3 years ago
4 0

Answer:

28/55

Step-by-step explanation:

The probability of taking a red bead first and a white bead second is:

P(red, white) = (7/11) (4/10)

P(red, white) = 14/55

The probability of taking a white bead first and a red bead second is:

P(white, red) = (4/11) (7/10)

P(white, red) = 14/55

So the probability that one bead of each color is taken is:

P = P(red, white) or P(white, red)

P = 14/55 + 14/55

P = 28/55

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