Instructions

Study the given information carefully and answer the questions that follow:
An urn contains 6 red, 4 blue, 2 green, 3 yellow marbles.

Question 107

If two marbles are picked at random what is the probability that both are red ?

Solution

Required probability would be $$^6C_2/^{15}C_2$$ = 1/7 as we are selecting 2 balls out of 6 red balls out og the total possibility set of 2 balls out of 15 balls.


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