Probability is a measure of the likelihood that an event will occur. It is expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty. The probability of an event (E) is calculated using the formula: P(E) = Number of favorable outcomesTotal number of possible outcomes For example, the probability of flipping a fair coin and getting heads is 1/2 because there is one favorable outcome (heads) and two total possible outcomes (heads or tails).

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June 4, 2026Mathematics

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Probability is a measure of the likelihood that an event will occur. It is expressed as a number between 0 and 1, where 0 indicates impossibility and 1 indicates certainty.

The probability of an event (E) is calculated using the formula:

P(E) = \frac{\text{Number of favorable outcomes}}{\text{Total number of possible outcomes}}

For example, the probability of flipping a fair coin and getting heads is $\frac{1}{2}$ because there is one favorable outcome (heads) and two total possible outcomes (heads or tails).

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