using-the-empirical-rule-estimate-the-number-of-trees-in-a-sample-of-7575-whose-

Question

Using the Empirical Rule, estimate the number of trees in a sample of $75$ whose heights are between $18$ feet and $26$ feet. Assume the sample mean height is $22$ feet and the standard deviation is $2$ feet.

Accepted Answer

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<math alttext="62" data-value="62"><semantics><mrow><mn>62</mn></mrow><annotation>62</annotation></semantics></math> trees

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<math alttext="75" data-value="75"><semantics><mrow><mn>75</mn></mrow><annotation>75</annotation></semantics></math> trees

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Using the Empirical Rule, estimate the number of trees in a sample of 7575 whose heights are between 1818 feet and 2626 feet. Assume the sample mean height is 2222 feet and the standard deviation is 22 feet.

Using the Empirical Rule, estimate the number of trees in a sample of $75$ whose heights are between $18$ feet and $26$ feet. Assume the sample mean height is $22$ feet and the standard deviation is $2$ feet.