Sonny and Cher are both members of a population, and a simple random sample is being conducted. If the chance of Sonny being selected is 1/2900, what is the chance of Cher being selected?

In the case of a simple random sampling, each member of the population has an equal chance of being selected.
Therefore, if the chance of Sonny being selected is 1/2900, the change of Cher being selected is 1/2900.