Probability » Exercise - 115. The probability of happening atleast one of the events A & B is 0.6. If the events A & B happens simultaneously with the probability 0.2, then (a) 0.4 (b) 0.8 (c) 1.2 (d) none of these
Probability » Exercise - 137. In order to get atleast once a head with probability ≥0.9, the number of times a coin needs to be tossed, is : (a) 3 (b) 4 (c) 5 (d) none of these
Probability » Exercise - 111. If A & B are any two events, then the true relation is : (a) P (A ∩B) > P (A) + P (B) - 1 (b) P (A ∩B) < P (A) + P (B) (c) P (A ∩ B) = P (A) + P (B) − P (A ∪ B) (d) none of these
Probability » Exercise - 130. From the word “POSSESSIVE”, a letter is chosen at random. The probability of it to be S is : (a) 3/10 (b) 4/10 (c) 3/6 (d) 4/6
Probability » Exercise - 120. 3 dice are thrown simultaneously. What is the probability of obtaining a total of 17 or 18 ? (a) 1/9 (b) 1/72 (c) 1/54 (d) none of these
Probability » Exercise - 115. The probability of happening atleast one of the events A & B is 0.6. If the events A & B happens simultaneously with the probability 0.2, then (a) 0.4 (b) 0.8 (c) 1.2 (d) none of these