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

If there are $4$ red,$3$ pink,$5$ yellow,and $8$ white roses in a garden,what is the probability that a blind person touches a red or a white rose?

$A$ die is thrown. Find the probability of the following event: $A$ number greater than or equal to $3$ will appear.

An event $A$ is independent of itself if $P(A) = \dots$

One die and a coin (both unbiased) are tossed simultaneously. The probability of getting $5$ on the top of the die and tail on the coin is

Four persons independently solve a certain problem correctly with probabilities $\frac{1}{2}, \frac{3}{4}, \frac{1}{4}, \frac{1}{8}$. Then the probability that the problem is solved correctly by at least one of them is