The data below represents scores from a recent 50-point quiz. Make a reasoned choice about data ranges and graph the data using your TI-84 calculator.

25, 30, 20, 35, 40, 30, 33, 32, 35, 27, 39, 40, 38, 31, 31, 36, 43, 35, 40, 32, 34, 23, 27, 28, 23, 28 Window: ( ______, ______, ______, _____, _____, _____)

Describe the shape of the distribution: ________________

What letter grade would you award to a student who received a score of 31? ______Why? _________________________