Q. 44.2( 107 Votes )

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

A. B. –1.5

C. 15% D. 0.7

Answer :

We know that probability of an event (E) is either greater than or equal to 0 and always less than or equal to one. This shows that the probability of an event can never be negative or greater than 1.

Hence,

(A) 2/3 = 0.67As the value 0.67 is greater than 0 and less than 1, the value can be probability of an event

(B) - 1.5

The value is less than 0 and therefore cannot be the probability of an event.

(C) 15% = 0.15

As the value 0.15 is greater than 0 and less than 1, the value can be probability of an event.

(D) 0.7

As the value is greater than 0 and less than 1, the value can be probability of an event.

Out of the given alternatives, -1.5 cannot be a probability of an event as it is negative which is not possible.

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