Question

When all outcomes of a random experiment are equally likely, the probability model is called a _________ probability model.

• A. uniform
• B. non-uniform
• C. non-uniform
• D. symmetric

Answer 1

The correct option is A uniform

The probability model where every possible outcome has an equal likelihood of happening is called a uniform probability model.

Example: A fair coin
Each side of the coin, heads or tails, has an equal probability of landing up. Thus, the probability of getting heads is $\frac{1}{2}$, and the probability of getting tails is also $\frac{1}{2}$