Question

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

Options

• `1/4`

• `1/6`

• `1/3`

• `2/5`

Answer 1

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`