Student teachers learn to write lesson plans that will help them to be more successful in the classroom. To study the effectiveness of written lesson plans, 25 plans were scored on a scale of 0 to 34 according to a Lesson Plan Assessment Checklist. The 25 scores are shown in Table 2.5. Use Tchebysheff’s Theorem and the Empirical Rule (if applicable) to describe these scores.

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Table 2.5 Lesson Plan Assessment Scores 26.1 26.0 14.5 29.3 19.7 22.1 21.2 26.6 31.9 25.0 15.9 20.8 20.2 17.8 13.3 25.6 26.5 15.7 22.1 13.8 29.0 21.3 23.5 22.1 10.2