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प्रश्न
In a football match, Ronaldo makes 4 goals from 10 penalty kicks. The probability of converting a penalty kick into a goal by Ronaldo, is
विकल्प
`1/4`
`1/6`
`1/3`
`2/5`
उत्तर
The total number of trials is 10.
Let A be the event that Ronaldo makes a goal in a penalty kick.
The number of times A happens is 4.
Remember the empirical or experimental or observed frequency approach to probability.
If n be the total number of trials of an experiment and A is an event associated to it such that A happens in m-trials. Then the empirical probability of happening of event A is denoted by P(A ) and is given by
`P (A) = m/n`
Therefore, we have
` P(A) = 4/10`
`= 2/5`
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