A bag 4
A bag contains 18 balls that differ only in colour: 11 are blue and 7 are red. Two balls are picked one after the other without replacement. Find the probability that both are:
(i) blue,
(ii) the same colour,
(iii) different colours.
Your answer:
(i) blue,
(ii) the same colour,
(iii) different colours.
Your answer:
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You need to know the following knowledge to solve this word math problem:
combinatoricsalgebraarithmeticnumbersthemes, topicsGrade of the word problem
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