Chapter 12, Problem 20PT

To determine

To state: that the sample is biased or unbiased.

Answer to Problem 20PT

The sample is the biased.

Explanation of Solution

Given information:

The $2$ girls and $2$ boys are chosen at random to represent the class at the pride assembly.

since, the $2$ girls and $2$ boys are chosen at random to represent the class at the pride assembly.

Because the chosen of girls and boys to represent the class at the pride assembly is random.

Thus, the sample is biased.