There are four men and six women on the city council. If one council member is selected for a committee at random, how likely is it that it is a woman?
There are four men and six women on the city council.
As one council member is to be selected for a committee at random, the sample space contains $10(4+6)$ elements.
Let A be the event in which the selected council member is a woman.
Accordingly, $n ( A )=6$
$\therefore P ( A )=\frac{\text { Number of outcomes favourable to } A }{\text { Total number of possible outcomes }}=\frac{n( A )}{n( S )}=\frac{6}{10}=\frac{3}{5}$
The probability of getting at least one tail in $4$ throws of a coin is
Two dice are thrown. The events $A,\, B$ and $C$ are as follows:
$A:$ getting an even number on the first die.
$B:$ getting an odd number on the first die.
$C:$ getting the sum of the numbers on the dice $\leq 5$
State true or false $:$ (give reason for your answer)
Statement : $A$ and $B^{\prime }$ are mutually exclusive
Consider the experiment of rolling a die. Let $A$ be the event 'getting a prime number ', $B$ be the event 'getting an odd number '. Write the sets representing the events $^{\prime}$ not $A\,^{\prime}$.
Two dice are thrown simultaneously. What is the probability of obtaining a multiple of $2$ on one of them and a multiple of $3$ on the other
Four coins are tossed. The probability that at least one head turns up, is