Q3 of 31 Page 308

Why is tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game?

Tossing a coin considered to be a fair way of deciding which team should get the ball at the beginning of a football game because when we toss a coin, the possible outcomes are only two, head or tail, which are equally likely outcomes. Hence, the result of an individual toss is completely unpredictable and fair.


More from this chapter

All 31 →
1

Complete the following statements:

(i) Probability of an event E + Probability of the event ‘not E’ = __________.


(ii) The probability of an event that cannot happen is______. Such an event is called ___________.


(iii) The probability of an event that is certain to happen is ________. Such an event is called ________.


(iv) The sum of the probabilities of all the elementary events of an experiment is ____________.


(v) The probability of an event is greater than or equal to and less than or equal to __________.

 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.


(ii) A player attempts to shoot a basketball. She/he shoots or misses the shot.


(iii) A trial is made to answer a true-false question. The answer is right or wrong.


(iv) A baby is born. It is a boy or a girl.

 4

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

A. B. –1.5


C. 15% D. 0.7

 5

If P(E) = 0.05, what is the probability of ‘not E’?