Question

Question 3 In a particular section of Class IX, 40 students were asked about the months of their birth and the following graph was prepared for the data so obtained: Find the probability that a student of the class was born in August.

Class 9 - Math - Probability Page 283

Answer 1

[Graph of this question is in the attachment]
____________________________

Probability is the study of the chances of events happening.
Event:
A Possible outcome or combination of outcomes is called event.
The probability of happening our event always lies from 0 to 1.
The sum of all the probabilities of all possible outcomes of an experiment is 1.

Required probability=Number of trials in which the event E has happened/Total number of trials

____________________________

Solution:

Total numbers of students in class IX = 40

Numbers of students born in the month of August = 6

Required probability that a student of the class was born in August,P(born in August) = 6/40 = 3/20

P(born in August)=3/20
================================
Hope this will help you...

Answer 2

By histogram ,six students were born in the months of August out of 40 student of a particular section of class 9th.

Probability that a student. of a class was born in August .

==6/40

==3/20

Hope it will helpful....