Self selected sample is one in which the researcher puts out a call for volunteers and creates the sample .
In Random sampling each sample has an equal probability of being chosen.
Bias sample is one where sample is collected in such a way that some members of the intended population are less likely to be included than others.
In systematic sampling a random sample from among a larger population.
Favorite color of the school is blue is systematic sample.
Answer:
Positive
Step-by-step explanation:
refrigerator is 210, so it positive.
C
the lines are intersecting at 1,3
