Question

Fill in the blanks:

(i) The probability of an impossible event is ……. .

(ii) The probability of a sure event is …….. .

(iii) For any event E, P(E) + P (not E) = …….. .

(iv) The probability of a possible but not a sure event lies between ……… and …….. .

(v) The sum of probabilities of all the outcomes of an experiment is ……. .

Answer 1

(i) The probability of an impossible event is zero.

(ii) The probability of a sure event is one.

(iii) For any event E, P(E) + P(not E) = 1.

(iv) The probability of a possible but not a sure event lies between zero and one.

(v) The sum of probabilities of all the outcomes of an experiment is one.