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Question
A die is rolled 10 times and the data is tabulated below:
Number Frequency 1 2 2 2 3 1 4 3 5 2 6 1
If we want to find the probability of getting an even number, what is the number of trials where the event happened?
A die is rolled 10 times and the data is tabulated below:
| Number | Frequency |
| 1 | 2 |
| 2 | 2 |
| 3 | 1 |
| 4 | 3 |
| 5 | 2 |
| 6 | 1 |
If we want to find the probability of getting an even number, what is the number of trials where the event happened?
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Solution
The correct option is C 6
An event for an experiment is the collection of some outcomes of the experiment.
The event we are looking for, here, is getting an even number.
We can see three even numbers; 2, 4 and 6.
Hence, the number of trials where the event happened is
Frequency of 2 + Frequency of 4 + Frequency of 6
= 2 + 3 + 1
= 6
An event for an experiment is the collection of some outcomes of the experiment.
The event we are looking for, here, is getting an even number.
We can see three even numbers; 2, 4 and 6.
Hence, the number of trials where the event happened is
Frequency of 2 + Frequency of 4 + Frequency of 6
= 2 + 3 + 1
= 6
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