The probability of obtaining a sum of $8$ in a single throw of two dice is:

Two dice are thrown simultaneously. The probability of getting a multiple of $2$ on one die and a multiple of $3$ on the other die is

There are $3$ families,each having $1$ boy and $1$ girl. If one child is selected from each family,what are the elements of the event that only girls are selected?

From a book containing $100$ pages,one page is selected randomly. The probability that the sum of the digits of the page number of the selected page is $11$,is

Three identical dice are rolled. The probability that the same number will appear on each of them is:

One card is drawn from each of two ordinary packs of $52$ cards. The probability that at least one of them is an ace of hearts is: