Question

which is not a condition that must be met for a sample to be considered random?
the probabilities must remain constant throughout the selection process
sampling must be done with replacement
each individual has a different probability of being chosen
each individual has an equal probability of being chosen

Explanation:

In a random sample, probabilities should remain constant, sampling can be with or without replacement, and each individual should have an equal probability of being chosen. Having different probabilities for individuals violates the random - sampling concept.

Answer:

C. Each individual has a different probability of being chosen