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Introduction To Mathematical Modelling

Question

Wired Faculty App

The following table shows the birth day of 30 students of class X:

Day

Number of students

Sunday

3

Monday

6

Tuesday

2

Wednesday

1

Thursday

9

Friday

5

Saturday

4

Find the probability that a student was bom on Saturday.

$2 over 15$
$1 over 6$
$1 third$
$1 half$

Solution

A.

2 over 15

Some More Questions From Introduction to Mathematical Modelling Chapter

Activity: Note the frequency of two wheelers, three wheelers and four wheelers going past during a time interval, in front of your school gate. Find the probability that any one vehicle out of the total vehicles you have observed is a two-wheeler.

Activity: Ask all the students in your class to write a 3-digit number. Choose any student from the room at random. What is the probability that the number written by her/him is divisible by 3 ? Remember that a number is divisible by 3, if the sum of its digits is divisible by 3.

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