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Mr. McCormick, the psychology teacher, invited his students stay after school to participate in a study on learning styles so that he could better understand how to teach them. $10$ of his students participated. $\newline$ Is this a random sample of the teacher's students? $\newline$ Choices: $\newline$ (A)yes $\newline$ (B)no

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Identify representative, random, and biased samples

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Q. Mr. McCormick, the psychology teacher, invited his students stay after school to participate in a study on learning styles so that he could better understand how to teach them.

10

of his students participated.

\newline

Is this a random sample of the teacher's students?

\newline

Choices:

\newline

(A)yes

\newline

(B)no

Analyze Sampling Method: Analyze the sampling method used by Mr. McCormick. He invited students to stay after school voluntarily for a study on learning styles. This method does not ensure that every student had an equal chance of being selected since it depends on students' availability and willingness to participate.
Determine Random Sample: Determine if the sample can be considered random based on the method of selection. A random sample requires that each member of the population has an equal chance of being included. In this scenario, the sample is not random because it is self-selected by those who chose to stay, not randomly chosen from all students.

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