Methodology for Randomizing the Project Groups
[rev. 10/10/2006]
1. |
We will include all 15
members of the class. |
2. |
We will choose both group
members and leaders in this exercise. |
3. |
Table B will be our
technique of choice for randomly choosing group members and leaders. |
4. |
Use Mr. Hansen’s TI-83 to
select a starting row with randInt(101,150). Warning:
On the AP exam, you cannot use calculator notation. You would simply say
something like, “Start at the left edge of row 118 of Table B.” |
4a. |
It is understood that Table
B continues left to right, top to bottom, returning to the upper left corner
if necessary. We must never repeat previously used portions of Table B during
this exercise. |
5. |
Assign 2-digit numbers
00-14 to the students from the alphabetic roster. |
6. |
Make a table, 3 rows
(labeled “Other 1,” “Other 2,” and “Leader”) by 5 columns (labeled “Group 1”
through “Group 5”). |
7. |
Draw 2-digit numbers from
Table B in sequence. (Important:
Ignore 90, 91, 92, 93, 94, 95, 96, 97, 98, 99.) The
remainder when the selected number is divided by 15 indicates the person who
will be slotted next into the table. |
8. |
We will fill the student table
left to right, then top to bottom. |
There is at least one gap remaining in these instructions. Can you find it?
Write out your answer with the appropriate number(s).