Ateacher polled only the 8th grade students in english classrooms on what their favorite color is. she found that the favorite color of the school is blue. what kind of sample is this? self-selected sample random sample biased sample systematic sample

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.

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