ATQ, 30% of 750 + ?% of 400 = 25% of 1016 + 3 Or, 0.3 X 750 + (?/100) X 400 = 0.25 X 1016 + 3 Or, 225 + ? X 4 = 254 + 3 Or, ? X 4 = 257 - 225 So, ? = (32/4) = 8
Two hats are picked at random, what is the probability that all hats are of green colour?
Given that E and F are events such that P(E) = 0.7, P(F) = 0.4 and P(E ∩ F) = 0.3, find P(E|F) and P(F|E)
A speaks truth in 75% of cases And B is 80% of cases. What is the probability that they likely to contradict each other, narrating the same incident.
The probability of selecting a rotten apple randomly from a heap of 150 apples is 0.28. What is the number of rotten apples in the heap?
Five squares of a chessboard are chosen at random, the probability that three are of one colour and two of another is
A brother and a sister appear for an interview against two vacant posts in an office. The probability of the brother’s selection is 1/5 and that of th...
Two cards are drawn together from a pack of 52 cards. The probability that one is a club and one is a diamond?
Anna is participating in a trivia game with 6 questions, each with 3 choices. Only one choice is correct per question. If Anna guesses on all questions,...
A basket contains 3 yellow, 5 purple and 3 red flowers. If 3 flowers are drawn at random, what is the probability that at least two are of same colour?
what is the probability that at least one of them narrates an incident truthfully.
