The type of sampling in which each person in the population has an equal chance of being selected is

When every person in the population has an equal chance of being selected, the method is probability sampling.

Known, non-zero selection probabilities are its defining feature.

Non-probability sampling gives members unknown or unequal chances of selection.

Judgement sampling relies on the researcher's choice and offers no equal probability.

Convenience sampling selects the easily available and violates the equal-chance principle.

Simple random sampling is the specific probability method giving strictly equal chances.