Question

The table given below shows the months of birth of 36 students of a class:

Month of birth	Jan.	Feb.	Mar.	Apr.	May	June	July	Aug.	Sept.	Oct.	Nov.	Dec.
No. of students	4	3	5	0	1	6	1	3	4	3	4	2

A student is choosen at random. Fill in the boxes.

Total number of students = `square`

Let E be the event that the selected student is born in June.

Then, 

Number of times event E occurs = `square`

So, P (selected student is born in June)

P(E) = `"Number of students born in June"/square`

= `square/square`

= `square`

Answer 1

Total number of students = 36

Let E be the event that the selected student is born in June.

Then, 

Number of times event E occurs = 6

So, P (selected student is born in June)

P(E) = `"Number of students born in June"/bb("Total number of students")`

= `bb6/bb36`

= `bb(1/6)`