Question

There is a group of 30 students from class XIth and class XIIth.
$EventX=\left\{\text{Students in class}X{I}^{th}\right\}$
$EventY=\left\{\text{Students in class}XI{I}^{th}\right\}$
X and Y are mutually exclusive events.

• A. True
• B. False

Answer 1

The correct option is A True

Look, what is the criteria for two events to be mutually exclusive? It is that if one of them is occurring then it is impossible for the other to occur. So if a student is in class $X{I}^{th}$ then he can’t be in class $XI{I}^{th}$ and vice-versa. There is nothing common between these events. So they are mutually exclusive.