Use the formula , Probability = \\(\\frac{No. of favourable outcomes}{Total no. of possible outcomes}\\)

Number of king in the pack of cards =4, one of each suits.

How many kings and queens are there altogether in pack of 52 cards?

Use the formula, Probability = \\(\\frac{No. of favourable outcomes}{Total no. of possible outcomes}\\)

The probability of an impossible event is 0 and the probability of a certain event is 1.

How many girl candidates are there?