### Home > INT3 > Chapter 6 > Lesson 6.3.1 > Problem 6-86

Parking meters in a beach resort town cost *6-86 HW eTool* (Desmos). Homework Help ✎

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

. From your graph, visually estimate where the middle

% of meter earnings fall. Shade this portion of your sketch. Use your calculator to check your estimate. How close to

% did you come? normalcdf(lower estimate, upper estimate, 10, 2) = 0.90

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*