Question

which of the following can be probability of an even(a) -0.04 (b) 1.004 (c) 18/23 (d) 8/7

Answer 1

$0 \leqslant p(a) \leqslant 1 \\ \frac{18}{23} \: is \: correct$

Answer 2

The probability of any event can be (c) $\frac{18}{23}$.

What is an event?

An event is occurrence of any outcome for a random experiment.

What is probability?

• Probability is the possibility of a number of occurrence of any particular outcome of any randomly selected experiment.
• It is a numeric value which is dimensionless.
• Probability of any outcome can range from 0 to 1.
• It can never be more than 1 or a negative number.
• Probability of any outcome if 1, it means that there is 100% chance of that specific outcome to occur.
• Greater the probability, more is the possibility of occurrence of that result or outcome for that experiment.
• Probability is defined as number of ways that a certain outcome can occur divided by the total number of outcomes of that particular experiment.

Example: When a coin is flipped, there can only be two possibilities i.e. either a head or a tail. So, the possibility of heads to occur is 0.5 and the possibility of a tail to occur is 0.5.