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a bag contains 9 Indentical balls out of which 3 are blue,2 are white and...

a bag contains 9 Indentical balls out of which 3 are blue,2 are white and the remaining are red.if a ball is drawn from the bag,what is the probability that it is (1)blue (2)not red.?

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Answers (3)

EmX
1 month ago
isaaq
1 month ago
there are 3 blue balls out of 9
there are 9-5 balls which are not red
...
(i)Pr(blue)=no.of blue balls/total no.of balls=3/9
~1/9 to d lowest terms.
(ii)Pr(not red)=1-Pr(red)
But Pr(red)=no.of red balls/total no.of balls=4/9
Therefore,Pr(not red)=1-4/9 Which is 5/9 after finding l.c.m
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