Answers to Percentile Rank and Percentile Problems

Percentil Ranks - Part I

Percentile Ranks for 40 Ungrouped Scores
  Score    PR
   30      98
   27      94
   26      91
   24      89
   23      85
   21      76
   20      68
   19      61
   18      54
   17      46
   16      40
   15      36
   14      31
   13      25
   12      20
   11      16
   10      11
    8       8
    5       4
    2       1

Percentil Ranks - Part II

What is the percentile rank of:
1.  15--33
2.  22--72
3.  23--76
4.  27--88
5.  9--9

Percentiles - Part I

Find:
1.  C-20--15
2.  C-34--18
3.  C-40--18
4.  C-55--23
5.  C-88--30

Percentiles - Part II

Use scores on Percentile Rank of Part II to find:
1.  C-20--12.6
2.  C-34--15.1
3.  C-40--16.0
4.  C-55--18.4
5.  C-88--26.8