How is a sample related to a population? Choose the correct answer below.
A.
A sample is a numerical measure that describes a sample characteristic.
B.
A sample is a subset of a population.
C.
A sample is the collection of all outcomes, responses, measurements, or counts.

1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?