Each year, the National Highway Traffic Safety Administration (NHTSA) crash tests new car models to determine how well they protect the driver and front-seat passenger in a head-on collision. The NHTSA has developed a "star" scoring system for the frontal crash test, with results ranging from one star (*) to five stars (*****). The more stars in the rating, the better the level of crash protection in a head-on collision. The NHTSA crash test results for 98 cars in a recent model year are stored in the data file named CRASH.

The driver-side star ratings for the 98 cars are summarized in the following MINITAB printout. 

Use the informationin the printout to form a pie chart. Interpret the graph.

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3.75 4.05 3.81 3.23 3.13 4.06 4.56 3.60 3.27 3.30 3.21 3.32 4.09 4.09 3.38 3.37 2.73 2.95 3.90 5.06 3.85 3.88 2.25 2.73 2.55 3.06