Respuesta :

Answer:

C. The manager visits a park and interviews people who were waiting to use the tennis courts.

Step-by-step explanation:

It's biased because the manager is clearly asking people only interested in tennis, not a clearly random sample.

C I would say the answer C because 400 people is a little too much people to interview and if the people are by the tennis courts those answers would be bias because they would say yes
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