Question

the probability of an event is expressed as





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Answer 1

Answer:A probability is a number that reflects the chance or likelihood that a particular event will occur. Probabilities can be expressed as proportions that range from 0 to 1, and they can also be expressed as percentages ranging from 0% to 100%.

Step-by-step explanation:

Answer 2

The formula to find probability of an event

$\displaystyle \sf{ = \frac{Number \: of \: favourable \: cases \: to \: the \: event }{Total \: number \: of \: possible \: outcomes }}$

Given : An event

To find :

The formula to find probability of the event

Solution :

Step 1 of 2 :

Define probability of an event

In any random experiment if the total number of elementary ( simple) events in the sample space be n ( a finite number) among which the number of elementary events favourable to an event E , connected with the experiment be m then the probability of the event E is denoted by P (E) and defined as

$\displaystyle \sf{}P(E) = \frac{m}{n}$

Step 2 of 2 :

Write down formula to find probability of an event

From above we can conclude that The probability of an event

$\displaystyle \sf{ = \frac{Number \: of \: favourable \: cases \: to \: the \: event }{Total \: number \: of \: possible \: outcomes }}$

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