What is the probability of something happening?

• A. Event
• B. Frequency
• C. Magnitude
• D. Likelihood

Answer: (D)

The probability of something happening is the likelihood of that event occurring. Likelihood is the formal way to express how much chance there is for a particular outcome. The other terms have different meanings: an event is the specific outcome that may occur; frequency describes how often something happens over many trials; magnitude refers to the size or extent of something, not its chance of occurring. So the best answer is likelihood, since it directly captures the idea of how probable it is that the event will occur. For example, drawing a red ball from a bag with 2 red and 3 blue balls has a likelihood (probability) of 2/5.