The probability of getting a sum of $16$ in one throw with three dice is:

In order to get at least one head with a probability $\ge 0.9$,the minimum number of times a coin needs to be tossed is:

What is the chance that a leap year selected randomly will have $53$ Wednesdays?

In a single throw of a fair die,what is the probability of getting a number less than $7$?

$A$ bag contains $7$ black and $5$ white balls. $A$ ball is drawn out and replaced in the bag. Then a ball is drawn again. What is the probability that the first ball was black and the second white?

From a pack of $52$ cards,$4$ cards are drawn. What is the probability that it has two digit-cards and one honours card of black suit and one honours card of red suit?