The probability that A speaks truth is $$\frac{{3}}{{5}}$$ and that of B speaking truth is $$\frac{{4}}{{7}}$$. What is …

Three unbiased coins are tossed. What is the probability of getting at most two heads?

A box has 6 black, 4 red, 2 white and 3 blue shirts. Find the probability of drawing 2 black shirts if they are picked r…

From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red …

There are 12 boys and 8 girls in a tuition centre. If three of them scored first mark, then what is the probability that…

A box has 6 black, 4 red, 2 white and 3 blue shirts. What is probability of picking at least 1 red shirt in 4 shirts tha…

A number X is chosen at random from the numbers -3, -2, -1, 0, 1, 2, 3. What is the probability that $$|X| < 2$$

An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If four marbles are picked up at random, what is the probab…