Probability » Exercise - 16. A single letter is selected at random from the word “PROBABILITY”. The probability that the selected letter is a vowel is : (a) 2/11 (b) 3/11 (c) 4/11 (d) 0
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Probability » Exercise - 124. The letter of the word “ASSASSIN” are written down at random in a row. The probability that no two S occur together is : (a) 1/35 (b) 1/14 (c) 1/15 (d) none of these
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Probability » Exercise - 113. If A & B are any two events, then the probability that exactly one of them occur is : (a) P (A) + P (B) - P (A ∩B) (b) P (A) + P (B) - 2 P (A ∩B) (c) P (A) + P (B) - P (A ∪B) (d) P (A) + P (B) - 2 P (A ∪B)
Probability » Exercise - 15. 6 coins are tossed simultaneously . The probability of getting atleast 6 heads is : (a) 57/64 (b) 229/256 (c) 7/64 (d) 37/256
Probability » Exercise - 19. If P (A) = 0.4, P (B) = x, P (A ∪ B) = 0.7 and the events A & B are independent, then x = (a) 1/3 (b) 1/2 (c) 2/3 (d) none of these