Question

Nish is playing a video game where he pushes a button to stop a spinning wheel. Each time he presses the button, the theoretical probability of scoring 0 points is 1/5, the theoretical probability of scoring 10 points is 3/5, and the theoretical probability of scoring 20 points is 1/5. How many times would you expect Anish to score 10 points if he presses the button 10 times?

Answer 1

6 times

Explanation:

The theoretical probability of scoring 10 points upon pressing a button = 3 / 5

The expected number of times 10 points is scored if button is pressed 10 times :

This will be ;

(Number of times button is pressed * theoretical probability of scoring 10 when button is pressed)

(10 * 3 / 5)

= 30 / 5

= 6 times