Chapter 11.3, Problem 39E

To determine

To explain:whether the friend claimed that the sample cannot be biased is correct or not.

Answer to Problem 39E

Here, the friend’s claim that the sample cannot be biased is incorrect.

Explanation of Solution

Given: The U.S Census is taken every 10 years to gather data from the population.

Calculation:

Friend’s claim that the sample cannot be biased is incorrect.

There are many ways in which a census could be biased, for example

Some groups in the population, like the homeless are difficult to contact.

Some people might not be included in the census count.

Some people might not have answered the questions honestly.

Conclusion:

Therefore, the friend’s claim that the sample cannot be biased is incorrect.