$A$ bag contains $3$ white and $5$ black balls. If one ball is drawn,then the probability that it is black,is

The probability that an ordinary or a non-leap year has $53$ Sundays is

The probability of obtaining an even prime number on each die,when a pair of dice is rolled,is . . . . . . .

Events $E$ and $F$ are such that $P(\text{not } E \text{ and not } F) = 0.25$. State whether $E$ and $F$ are mutually exclusive.

The chance of throwing at least $9$ in a single throw with two dice is:

An experiment consists of rolling a die and then tossing a coin if the number on the die is even. If the number on the die is odd,the coin is tossed twice. Write the sample space for this experiment.