Question: For this problem, assume that the distribution for all sizes/mileages in the population are normally distributed (may not really be true). Find the proportion of

  1. For this problem, assume that the distribution for all sizes/mileages in the population are normally distributed (may not really be true). Find the proportion of all sizes/mileages that would fall between the sizes/mileages of your 20th and 70th observations. To receive full credit, you should include pictures of the normal curve (labeled with both x and z-values) with the pertinent probabilities shaded in the picture.

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