Quiz with with 10 questions and worth 10 points. The histogram at the bottom shows the following grades, but why is there a row for 1-1 and 1-2, and 1-3, 1-4, etc. along the x axis? Shouldn't there only be entries for 0 - 1, 1- 2, 3- 4, etc? See attached graphic.
Thanks for any explanations!
Caryl Gordon
UNC Charlotte
A lot of the mystery is caused by the fact you have chosen to show the quiz grade rounded to the nearest whole number. Behind the scenes there will be some decimal points involved, but they are not shown.
I suppose we ought to make the graph drawing code more intelligent when it decides what axis to use.