Question

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

• A. $\frac{2}{3}$
• B. $-1.5$
• C. $15\%$
• D. $0.7$

Answer 1

The correct option is B $-1.5$

The probability of an event cannot be negative in any case, thus $-1.5$ cannot be the probability of an event. The probability of happening of an event always lies between $0$ to $1$, i.e., $0\le P\left(E\right)\le 1$.