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  4. Which of the following can be the probability of an event?

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Q. Which of the following can be the probability of an event?

Probaility

Solution:

The probability of an event lies between ' 0 ' and ' 1 ' i.e., $O< P(E)< 1$
Option A
$ \frac{2}{5}=0.4 $(True)
$ \{\because 0 \leq 0.4 \leq 1\}$
Option B
3.2(False)
$0< 1< 3.2$
Option C
$50 \%$
$\frac{50}{100}=\frac{1}{2} \Rightarrow 0 \leq \frac{1}{2} \leq 1$(True)
Option D
$-0.6$
$1 \therefore$ the probability of an event cannot be negativel (False)
$-0.6 \leq 0 \leq 1$