Course grades will be computed as follows.
First I will compute your numerical course grade as described in
the course syllabus: the
average of your best three quizzes accounts for 15% of the
grade, the average of the two midterm exams for 50%, and the
final exam for 35%. I will set an overall curve for the course
based on these scores and assign you a letter grade based on
this curve.
Then I will assign a letter grade to your final exam only. This
grade will be determined on a strict decade scale: 90–100
= A, 80–89 = B, 70–79 = C, 60–69 = D, and less
than 60 is failing.
Your final grade in the course will be the higher of these two
letter grades.
Grade Summaries
This page provides a
stemandleaf plot and a simple numerical summary of the
grades on the most recent quiz or exam. Current course averages
will also be posted in the same format after each exam. Of
course these are not the final course grades; they are provided
here just so that students can see where they stand relative to
the rest of the class.
Quiz 4
 STA 4321

The decimal point is at the 
0  0
2  000
4  00
6  00
8  0000000000
10  000
12  00
14  0000
16  000
18  00000
20  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
1.00  8.00  9.50  10.75  15.25  20.00  14.00 

 STA 5325

The decimal point is at the 
12  000
14  0
16  0
18  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
12.00  12.25  14.00  14.67  16.50  19.00  3.00 

Current Course Averages
Based on Quizzes 1–3 and Exams 1–2.
 STA 4321

The decimal point is 1 digit(s) to the right of the 
2  3678
3  3468
4  015677
5  059
6  33456
7  0015555779
8  13688
9  1689
10  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
22.50  44.90  65.40  63.00  78.68  100.00  8.00 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
6  4
7 
8  488
9  378
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
64.20  86.05  88.30  87.44  94.60  98.30  2.00 

Exam 2
 STA 4321

The decimal point is 1 digit(s) to the right of the 
0  6
1  367
2  489
3 
4  00279
5  246
6  11199
7  0999
8  001249
9  2666778
10  00000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
6.00  47.50  74.50  66.88  95.00  100.00  8.00 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
6  2
7 
8  0
9  6899
10  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
62.00  88.00  98.00  90.57  99.00  100.00  2.00 

Quiz 3
 STA 4321

The decimal point is at the 
0  0000
2  000
4  000
6 
8  0
10  00000
12  000
14  000
16  0
18  00
20  0000000000000000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
0.00  8.00  15.00  13.24  20.00  20.00  9.00 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
0  5
1 
1  59
2  0000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
5  17  20  17  20  20  2 

Exam 1
 STA 4321

The decimal point is 1 digit(s) to the right of the 
0  577
1  05889
2  123567
3  012589
4  3488
5  25668
6  112233489
7  00125
8  2
9  6678
10  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
5.00  26.00  52.00  49.14  68.00  100.00  1.00 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
6  0
7  46
8  9
9  237
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
60.0  75.0  89.0  83.0  92.5  97.0  2.0 

Quiz 2
 STA 4321

The decimal point is 1 digit(s) to the right of the 
0  222344
0  55566788889999
1  0000334444
1  5555556678899
2  000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
2.00  7.25  10.00  11.17  15.00  20.00  4.00 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
0  669
1  3479
2  0
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
6.00  8.25  13.50  13.00  17.50  20.00  1.00 

Quiz 1
 STA 4321

The decimal point is 1 digit(s) to the right of the 
0  4
0  8
1  0222234444444
1  5666666666888888888888
2  000000000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max.  NA's 
4  14  16  16  18  20  4 

 STA 5325

The decimal point is 1 digit(s) to the right of the 
1  02344
1 
2  0000
Min.  1st Qu.  Median  Mean  3rd Qu.  Max. 
10.00  13.00  14.00  15.89  20.00  20.00 
