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
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 = 0.67
As 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.
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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