Clara Barton- she helped nurse men on the battlefield during the Civil War, thus the name
Answer:
She is using a biased sample for her data collection
Explanation:
Juanita should have gone across different sections to collect her data in order to have a more representating sample but the samples she used is biased because she was generalizing her study based on only one dentist that she got to study her patient whereas the doctor has gotten some toothpaste from the company.
Yes they needed to set down and talk to resolve their problem, if one listwnd to another
