Grade distributions

These graphs are called CDFs, or cumulative distribution function graphs. (Strictly speaking they are empirical CDFs or ECDFs.) The X axis shows the range of grades. The Y axis value for a given grade G shows the percentage of students that had grade <= G. CDFs are super useful, please try to get comfortable with them!

• Low score: 61; High score: 147; Median: 106; Mean: 105.7; Std.dev.: 18.27

• Low score: 11; High score: 89; Median: 48.5; Mean: 50; Std.dev.: 17.33

• Low score: 5; High score: 16; Median: 10; Mean: 9.6; Std.dev.: 1.83
• Full credit 12

• Low score: 0; High score: 12; Median: 9; Mean: 8.4; Std.dev.: 2.42
• Full credit 9