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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`
Solution
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)`
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