A fair coin is tossed 5 times. What is the probability of getting at least three heads on consecutive tosses?
3/16
1/4
7/24
5/16
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1
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If a team of 4 persons is to be selected from 8 males and 8 females, then in how many ways can the selections be made to include at least 1 female
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2
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12 person are seated at a round table. Number of ways of selecting 2 persons not adjacent to each other is
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3
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If A and B are two independent events with P(A) = 3/5 and P(B) = 4/9 , then P(A' ∩ B' ) equals
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4
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Three chairs are arranged in a row facing three other chairs. 4 boys and 2 girls are to be seated on these chairs such that girls are always facing each other. In how many ways can they be seated?
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5
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How many 4letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?
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6
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Find the probability that a leap year selected at random will contain 53 Sundays
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7
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If four dice are thrown together, then what is the probability that the sum of the numbers appearing on them is 25 ?
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8
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The students in a class are seated, according to their marks in the previous examination. Once, it so happens that four of the students got equal marks and therefore the same rank. To decide their seating arrangement, the teacher wants to write down all possible arrangements one in each of separate bits of paper in order to choose one of these by lots. How many bits of paper are required?
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9
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A biased coin in tossed thrice. What is the probability that heads turns out at least twice considering that the probability of a head is 60%?
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10
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In how many ways can a cricketer can score 200 runs with fours and sixes only?
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