An ordinary die is rolled . What is the probability that the number of dots on it upper face is (a)3 (b)less than 3 (c)an even number (d)7?
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no. of faces dice has = 6
probability of getting three faces=3/6=1/2
probability of getting less than three=2/6=1/3
probability of getting an even number =3/6=1/2
probability of getting 7=0 ( as there are only 6 faces)
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