Exercise 15.1

Probability of an event $E +$ Probability of the event ‘not $E$’ $=$_____

The sum of the probabilities of all the elementary events of an experiment is _____.

The probability of an event is greater than or equal to $0$ and less than or equal to _____ .

Which of the following experiments have equally likely outcomes? Explain.

A driver attempts to start a car. The car starts or does not start.

Does the below experiment have equally likely outcomes? Explain.
A player attempts to shoot a basketball. She/he shoots or misses the shot.

Does the experiment 'A baby is born. It is a boy or a girl.' have equally likely outcomes? Explain.

Which of the following cannot be the probability of an event?

Check whether the following argument is correct or not correct. Give reasons for your answer.

If a die is thrown, there are two possible outcomes $-$ an odd number or an even number. Therefore, the probability of getting an odd number is $\frac{1}{2}$.