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

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Solution

Lets assume a case:
Number of 2 wheelers passed =18
Number of 3 wheelers passed =23
Number of 4 wheelers passed =19
The time interval is 15 minutes for all the 3 conditions.
Total number of vehicles passed = Number of 2 wheelers + Number of 3 wheelers + Number of 4 wheelers
=18+23+19=60
Probability that one vehicle out of total vehicles is 2 wheelers $= \frac{18}{60} = \frac{3}{10}$

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Q. 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.

Q. 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.

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$\begin{matrix} T y p e o f v e h i c l e & T w o - w h e e l e r s & T h r e e - w h e e l e r s & F o u r - w h e e l e r s F r e q u e n c y & 84 & 68 & 88 \end{matrix}$

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