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Let $X_i$ denote the event that there are at least $i$ students attending a tutorial.

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Consider the following notation:

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A. $X_1$

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B. $\\overline{X_1}$

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C. $X_1\\overline{X_2}$

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D. $\\overline{X_1}X_2$

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What notation can be used to describe each of the following events?

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No students came to class and the tutor is lonely.

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Only one student came to class.

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The class is not empty.

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At least one student came to class.

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These questions are designed to gauge your attitudes towards mathematics and statistics and get a sense of your educational background. This does not contribute to your overall grade for the semester but is useful information for you to reflect on and to help the teaching team understand the student cohort.

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