What conclusion can be derived by comparing the central tendencies of the two data sets? A: {7, 6, 3, 1, 6, 2, 4, 6, 3, 5} B: {2, 2, 2, 3, 4, 5, 2, 8, 7, 6}
1st Rearrange A and B from lower to higher data points:
A ={
1
2
3
3
4
5
6
6
6
7} and B = {
2
2
2
2
3
4
5
6
7
8} --------------------------------- -------------------------------- a) Median = 4.5 Median = 3.5 b) Mean = 4.3 Mean = 4.1 c) Mode = 3 Mode = 4 d) Range = 6 Range = 6
Conclusion: --------------- A is more performing than B (Median near Mean in A) Data in A is negatively skewed (Median>Mean) and in B positively Skewed (Median < Mean)
