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6-86.

Parking meters in a beach resort town cost for every minutes. A normal distribution with a mean of and a standard deviation of can be used to model the amount of money one parking meter makes on a busy summer day. Homework Help ✎

  1. Make a graph of the distribution of the money made by one parking meter on your calculator, then sketch it. An appropriate value for the maximum of the relative frequency axis is .

  2. From your graph, visually estimate where the middle % of meter earnings fall. Shade this portion of your sketch.

  3. Use your calculator to check your estimate. How close to % did you come?

Use the eTool below to help solve parts (a) through (c).
Click the link at right for the full eTool version: INT3 6-86 HW eTool