What is the difference between biased and unbiased coin?

If $P\left(C\right)=\frac{3}{5}$ then $P\left(\overline{C}\right)=$ _____.

In a random experiment, if the occurrence of one event prevents the occurrence of the other event, it is

Select the Venn diagram that represents the correct relationship between the following classes:

Female, Mother, Sister

A die is thrown once. The probability of getting a number less than $3$ is

If $\mathrm{P}\left(\mathrm{A}\right)=\frac{2}{3}$, $\mathrm{P}\left(\overline{ \mathrm{A}} \right)$ is

On tossing a balanced dice once, the probability of a number obtained as multiple of $3$ is _____.

In the following Venn diagram the 'Circle' stands for 'Journalists', the 'Triangle' stands for 'Females' and the
'Rectangle' stands for 'Urban residents'. The given numbers represent the number of persons in that particular category.
How many journalists are female but NOT urban residents?

The table below shows the value of probability when three identical coins are tossed. They are not matched correctly: