$A$ card is selected from a pack of $52$ cards. Calculate the probability that the card is an ace.

When a pair of six-faced fair dice are thrown,the probability that the sum of the numbers on the two dice is greater than $7$ is:

There are two children in a family. The probability that both of them are boys is

The probability that a non-leap year contains $53$ Sundays is

$A$ card is drawn from a pack of $52$ cards. If $A =$ card is of diamond,$B =$ card is an ace,and $A \cap B =$ card is the ace of diamond,then events $A$ and $B$ are

The vertices of a regular tetrahedron are marked $1, 2, 3, 4$. If three such tetrahedra are thrown simultaneously,what is the probability that the sum of the numbers on the faces is $5$?