SOLUTION: A box contains 300 discs of different colours. There are 100 pink discs, 100 blue discs and 100 orange
discs. The discs of each colour are numbered from 0 to 99. Five discs are se
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-> SOLUTION: A box contains 300 discs of different colours. There are 100 pink discs, 100 blue discs and 100 orange
discs. The discs of each colour are numbered from 0 to 99. Five discs are se
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Question 1201360: A box contains 300 discs of different colours. There are 100 pink discs, 100 blue discs and 100 orange
discs. The discs of each colour are numbered from 0 to 99. Five discs are selected at random, one at
a time, with replacement. Find
(i) the probability that no orange discs are selected Answer by ikleyn(52778) (Show Source):
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A box contains 300 discs of different colours.
There are 100 pink discs, 100 blue discs and 100 orange discs.
The discs of each colour are numbered from 0 to 99.
Five discs are selected at random, one at a time, with replacement. Find
(i) the probability that no orange discs are selected
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The fact that the experiment is repeated with replacement means that every time
the initial conditions remain the same.
Therefore, in each selection of every of 5 discs, the probability that
no orange discs are selected is = .
Therefore, the probability that no orange discs are selected in all 5 selections is
= = = 0.131687243, or 0.1317 (rounded). ANSWER