Assume that a bag contains 4 red squares, 3 red rectangles, 5 blue squares and 4 blue circles. An object is taken out from the bag. What is the probability of taking out a blue square?
A
515
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B
416
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C
516
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D
616
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Solution
The correct option is C516 Total number of items in the bag,
n = 4 + 3 + 5 + 4 = 16
Let m denote number of element in the event "taking out a blue square".
then, m = 5.
Therefore, probability of taking out a blue square is P(A)=NumberofoutcomesfavourabletoATotalpossibleoutcomesi.e.,P(A)=mni.e.,P(A)=516