Discuss the following:
Refer to the below data sets of scores, X, Y and Z, from two 5-point quizzes to response the questions.
|
X
|
f
|
|
Y
|
f
|
|
Z
|
f
|
|
5
|
4
|
|
5
|
1
|
|
5
|
0
|
|
4
|
3
|
|
4
|
2
|
|
4
|
0
|
|
3
|
0
|
|
3
|
4
|
|
3
|
1
|
|
2
|
1
|
|
2
|
1
|
|
2
|
4
|
|
1
|
1
|
|
1
|
1
|
|
1
|
1
|
|
0
|
1
|
|
0
|
1
|
|
0
|
4
|
1. (a-c) Compute the mean for each set of scores.
2. (a-c) Compute the median for each set of scores.
3. (a-c) Compute the mode for each set of scores. (d) Which data set is multimodal, that is, it has more than one modes?
4. (a)What is a positively skewed distribution? (b) What measure of central tendency would be used with this type of distribution? (c) Why?
5. (a)What is a negatively skewed distribution? (b) What measure of central tendency would be used with this type of distribution? (c) Why?
6. (a)What is a symmetric distribution? (b) What measure of central tendency would be used with this type of distribution? (c) Why?