in a box of 75 markers, 36 markers are either red or black and 15 are blue. find the probability that a randomly selected marker is red or black or blue. .24 .51 .32 .68

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16-12-2022
Mathematics

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in a box of 75 markers, 36 markers are either red or black and 15 are blue. find the probability that a randomly selected marker is red or black or blue. .24 .51 .32 .68

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AmitPaswan AmitPaswan · Answer 1 · 2022-12-23T14:14:25-05:00

If the box contains 36 red or black markers and 15 blue markers , then the probability that the randomly selected marker is red or black or blue is 0.68 .

In the question ,

it is given that ,

the total number of markers in the box is = 75 markers ;

the number of markers that are red or black = 36 ;

the number of markers that are blue = 15 ,

So , the number of markers that are red or black or blue is = 36 + 15 = 51 ;

so ,the probability is = 51/75 .

= 0.68 .

Therefore , the required probability is 0.68 .

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