A word consists of 10 different alphabets, in which there are 4 consonants and 6 vowels. Four alphabets are chosen at random. What is the probability that more than one vowel is selected?

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 $\le 5$.
Describe the event$:$ $B$ and $C$.

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 $\le 5$

$A$ and ${\mathrm{B}}^{\text{'}}$ are mutually exclusive

$A$: 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 $\le 5$.

Then $A$ and $C$ are not mutually exclusive.