Econ 120C -- Fall 1998
The following are the original scores. Final curve was moved up
substantially.
SCORE MEAN S.D. MIN LQ MEDIAN UQ MAX
ADJ AVG 77 12 38 69 80 86 98
AVG 75 13 37 66 78 84 98
1 71 11 39 64 74 80 85
2 55 9 17 52 58 62 65
3 61 15 5 55 67 71 75
4 46 12 13 39 49 56 65
5 46 9 16 41 47 52 60
6 67 14 21 57 71 78 88
Frequency distribution for Adjusted weighted Score
Original FREQUENCY FOR THE
Gr Intervals midpt Freq REPORTED FINAL GRADES
A+ >= 99 99.95 1 8
A 95 - 98.9 96.95 3 16
A- 90 - 94.9 92.45 18 28
B+ 85 - 89.9 87.45 31 31
B 80 - 84.9 82.45 31 25
B- 75 - 79.9 77.45 23 17
C+ 70 - 74.9 72.45 19 17
C 65 - 69.9 67.45 17 14
C- 50 - 64.9 57.45 21 10
D 40 - 49.9 44.95 5 4
F <= 39.9 20.45 1 0
Total 170 170
Frequency distribution for Weighted Score (Max = 100, Weight = 100)
Gr Intervals midpt Freq
A+ >= 99 99.95 0
A 95 - 98.9 96.95 3
A- 90 - 94.9 92.45 11 *
B+ 85 - 89.9 87.45 22 ***
B 80 - 84.9 82.45 36 ******
B- 75 - 79.9 77.45 23 ****
C+ 70 - 74.9 72.45 24 ****
C 65 - 69.9 67.45 14 **
C- 50 - 64.9 57.45 29 *****
D 40 - 49.9 44.95 6 *
F <= 39.9 20.45 2
Total 170
Frequency distribution for Score 1 (Max = 85, Weight = 5)
Gr Intervals midpt Freq
A+ >= 84 84.95 10 *
A 81 - 83.9 82.45 26 ****
A- 77 - 80.9 78.95 21 ***
B+ 72 - 76.9 74.45 34 *****
B 68 - 71.9 69.95 23 ***
B- 64 - 67.9 65.95 12 **
C+ 60 - 63.9 61.95 15 **
C 55 - 59.9 57.45 13 **
C- 43 - 54.9 48.95 12 **
D 34 - 42.9 38.45 1
F <= 33.9 17.45 9 *
Total 176
Frequency distribution for Score 2 (Max = 65, Weight = 5)
Gr Intervals midpt Freq
A+ >= 65 65.45 2
A 62 - 64.9 63.45 40 ******
A- 59 - 61.9 60.45 35 ******
B+ 55 - 58.9 56.95 37 ******
B 52 - 54.9 53.45 11 *
B- 49 - 51.9 50.45 6 *
C+ 46 - 48.9 47.45 8 *
C 42 - 45.9 43.95 9 *
C- 33 - 41.9 37.45 9 *
D 26 - 32.9 29.45 5
F <= 25.9 13.45 11 *
Total 173
Frequency distribution for Score 3 (Max = 75, Weight = 5)
Gr Intervals midpt Freq
A+ >= 74 74.95 12 **
A 71 - 73.9 72.45 50 ********
A- 68 - 70.9 69.45 19 ***
B+ 64 - 67.9 65.95 21 ***
B 60 - 63.9 61.95 16 **
B- 56 - 59.9 57.95 4
C+ 53 - 55.9 54.45 11 *
C 49 - 52.9 50.95 6 *
C- 38 - 48.9 43.45 13 **
D 30 - 37.9 33.95 6 *
F <= 29.9 15.45 14 **
Total 172
Frequency distribution for Score 4 (Max = 65, Weight = 20)
Gr Intervals midpt Freq
A+ >= 65 65.45 3
A 62 - 64.9 63.45 7 *
A- 59 - 61.9 60.45 14 **
B+ 55 - 58.9 56.95 29 ****
B 52 - 54.9 53.45 18 ***
B- 49 - 51.9 50.45 17 **
C+ 46 - 48.9 47.45 13 **
C 42 - 45.9 43.95 19 ***
C- 33 - 41.9 37.45 25 ****
D 26 - 32.9 29.45 16 **
F <= 25.9 13.45 14 **
Total 175
Frequency distribution for Score 5 (Max = 60, Weight = 30)
Gr Intervals midpt Freq
A+ >= 60 60.45 1
A 57 - 59.9 58.45 14 **
A- 54 - 56.9 55.45 14 **
B+ 51 - 53.9 52.45 18 ***
B 48 - 50.9 49.45 29 *****
B- 45 - 47.9 46.45 37 ******
C+ 42 - 44.9 43.45 13 **
C 39 - 41.9 40.45 19 ***
C- 30 - 38.9 34.45 12 **
D 24 - 29.9 26.95 11 *
F <= 23.9 12.45 4
Total 172
Frequency distribution for Score 6 (Max = 90, Weight = 35)
Gr Intervals midpt Freq
A+ >= 89 89.95 0
A 86 - 88.9 87.45 5
A- 81 - 85.9 83.45 18 ***
B+ 77 - 80.9 78.95 31 *****
B 72 - 76.9 74.45 29 *****
B- 68 - 71.9 69.95 13 **
C+ 63 - 67.9 65.45 17 ***
C 59 - 62.9 60.95 10 *
C- 45 - 58.9 51.95 32 *****
D 36 - 44.9 40.45 8 *
F <= 35.9 18.45 7 *
Total 170