Find the probability of the given event. a bag contains 5 red marbles, 4 blue marbles, and 1 green marble. a randomly drawn marble is not blue.

The probability of an even is how likelihood this even happens.

For drawing a marble which has blue colour =

After that, we are going to find the propability of the complementary event of drawing a blue marble, which could be calculated by this formula



Apply it now....
P(not blue) = 1 - 0.4 = 0.6

I hope you got the idea!

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N(S) = 5 + 4 + 1 = 10 All marbles - The total no.of outcomes

n(E) = 4 Blue marble - The favorable outcomes 

Formula



2/5 or 0,4 or 40%