Probability ncert solutions Chapter 15 Exercise 15.1 Question 2
2. Which of the following experiments have equally likely outcomes? Explain.
(i) A driver attempts to start a car. The car starts or does not start.
This experiment does not have equally likely outcomes. The probability of outcomes depends on the condition of car.
(ii) A player attempts to shoot a basketball. She/he shoots or misses the shot.
This experiment does not have equally likely outcomes. The probability of outcomes depends on the skills of player.
A trial is made to answer a true-false question. The answer is right or wrong.
This experiment has equally likely outcomes because answer is either true or false and any person would answer either true or false. The probability of giving right answer is 0.5 and also, the probability of giving wrong answer is 0.5.
A baby is born. It is a boy or a girl.
It has equally likely outcomes. The probability that baby is going to be boy is 0.5 and the probability that baby is going to be girl is also 0.5.