There are different types of biases in a survey sampling. This includes: under coverage, nonresponse bias, response bias, voluntary response bias, etc.
A.- 2.
B. - 3.
C. - 1.
A. Under-coverage - 2. Few chosen representatives are not good sample for that project. Thus, not a representative sample.
B. Response bias - When there is expectation of a selected answer. Thus, expecting a certain answer.
C. Question-wording bias - 1. The wordings in an answer is false or inappropriately put together. Thus, Answer given do not reflect true views
Answer:
Adult should do at least 2 hrs and 30 min each week of aerobic physical activity at a moderate level.
Answer:
Chiefs
Explanation: because the 49ers suck
You should try to make eye contact often, but not the whole conversation; you should be presenting a sense of actually focusing on what the person is telling you, rather than just hearing what they are saying just because you are there. You should also ask questions in order to receive clarification of what was just said from the speaker. you most importantly shouldnt be into foreign topics, but rather build up on what you hear.
hope this helps