1. Based on the following set of data, identify the variables understudy and for each variable you determine and calculate the most appropriate measure of variability and following that write your interpretation of the results.
GENDER: Male or Female
MATH_PMR: Overall Grade at PMR
PRETEST: Performance score before experiment
POSTTEST: Performance score after experiment
PROC: Procedural knowledge attained
CONC: Conceptual knowledge attained

No GENDER MATH_PMR PRETEST POSTTEST PROC CONC
1 2 B 6 14 19 8
2 2 B 7 14 19 8
3 2 A 1 14.5 17 9
4 2 A 7 14.5 19 9
5 2 B 7 13.5 18 8
6 2 B 10 12 20 6
7 2 A 8 15 19 9
8 2 C 6 9 18 3
9 2 B 8 10 17 5
10 2 A 10 15 19 10
11 1 C 1 17 18 11
12 1 B 6 16 18 10
13 1 A 4 12 18 8
14 1 D 0 12 17 7
15 1 D 8 15 15 8
16 1 C 4 14 20 8
17 1 B 8 12 15 7
18 1 B 7 11 17 5
19 1 C 8 15 18 10
20 1 A 6 16 18 11
21 1 D 6 15 17 9
22 1 C 6 14 20 8
23 1 A 15 18 20 12
24 1 A 7 16 17 10
25 1 A 9 18 18 12
26 1 A 16 20 20 14
27 1 A 7 15 16 9
28 1 A 20 20 19 14
29 1 B 9 19.5 18 14
30 1 A 12 19 17 13
31 1 A 16 18 15 12
32 2 B 6 8 19 2
33 2 A 7 10 19 4
34 2 A 9 10 18 4
35 2 B 9 10 19 4
36 2 B 4 8 19 2
37 2 C 4 8 18 2
38 2 B 7 12 19 6

Dude 1 your Table died, 2 you need to look at the data and figure out what the biggest and smallest numbers are; write that down for each column and where most of the numbers are.

They are just asking you to understand the data. Apply what they've taught you in class!