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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.
Note : This is an activity, so we assume some values and solve
Let's assume these values
| Type of Vehicles | Frequency |
| Two wheelers | 150 |
| Three wheelers | 25 |
| Four wheelers | 75 |
We need to find Probability of getting a two-wheeler
Now,
Total number of vehicles = 150 + 25 + 75
= 150 + 100
= 250
Probability of getting two-wheeler = Number of two-wheelers/Total number
= 150/250
= 15/25
= 3/5
Thus, Required Probability is 3/5
