Apollster walks around a busy shopping mall, and approaches people passing by to ask them how often they shop at the mall. what type of sample is this?

Convenience sampling

Step-by-step explanation:

This type of sample refers to convenience sampling or grab sampling or accidental sampling.

Convenience sampling is a non-probability type sampling that  includes the population which is nearby or available in your zone.

This type of sampling is handy when you need to know about a particular data in less time .Although the result may be somewhat biased because of a certain type of population may exist close to you.This method is most useful for Pilot testing.

b

step-by-step explanation:

if a was wrong then it has to be b it cant be c either because not all the y intercepts are the same!

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