I'm having trouble understanding box-and-whisker plots. I pasted one of my practice questions below.

Two math courses have the following distribution of grades.

Algebra Geometry
40 65
60 65
62 67
68 70
70 75
75 78
77 80
78 82
80 85
80 85
81 85
85 85
88 88
88 89
92 90
92 92
94 94
96 96
99 98
100 99

Make a box plot for each distribution.

Which course has the largest IQR?

Thanks in advance!

Question

I'm having trouble understanding box-and-whisker plots. I pasted one of my practice questions below.

Two math courses have the following distribution of grades.

Algebra	Geometry
40	        65
60	        65
62	        67
68	        70
70	        75
75	        78 
77	        80
78	        82
80	        85
80	        85
81	        85
85	        85  
88	        88
88 	        89
92	        90
92	        92
94	        94
96	        96
99	        98
100	        99

Make a box plot for each distribution.

Which course has the largest IQR?

Thanks in advance!

anonymous · Answer

Nevermind I figured it out! :)