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%?
0.648
0.234
0.348
.839
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1
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It is required to seat 5 boys and 4 girls in a row so that the girls occupy the even places. How many such arrangements are possible?
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2
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Four letters are selected from the word “CAPAME” and are rearranged to form four letter words. How many words can be formed?
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3
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In how many different ways can the letters of the word 'MATHEMATICS' be arranged so that the vowels always come together
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4
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A speaks truth in 75% cases and B in 80% of the cases. In what percentage of the cases are they likely to contradict each other, narrating the same incident?
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5
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In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?
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6
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How many rectangles can be formed out of a chess board ?
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7
Discuss

How many 3digit numbers can be formed from the digits 2, 3, 5, 6, 7 and 9, which are divisible by 5 and none of the digits is repeated
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8
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Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?
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9
Discuss

How many integers between 1000 and 10000 have no digits other than 4, 5, or 6?
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10
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A committee of 8 members is to be selected from a group of 12 male and 10 female members. In how many ways the committee is selected such that at most two and at least one male member are there in the committee?
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