Module 2 - Statistics Flashcards
1
Q
Advantages of box plots
A
- Highlights outliers
- Easy to compare two data sets
2
Q
Disadvantages of box plots
A
-Once drawn, detailed analysis of the four categories is not possible
3
Q
Advantages of histograms
A
-clearly shows the shape of the distribution of the data
4
Q
Disadvantages of histograms
A
- Outliers aren’t always highlighted
- Q1, Q2 and Q3 are harder to find/calculate
5
Q
Advantages of cumulative frequency curves
A
Easy to find the five-number summary
6
Q
Disadvantages of cumulative frequency curves
A
Outliers aren’t always highlighted
7
Q
How is no data skew shown?
A
Q2 - Q1 = Q3 - Q2
Mean median Mode
8
Q
How is a positive skew shown?
A
Q2 -Q1 < Q3 - Q2
Mean > Median > Mode
9
Q
How is a negative data skew shown?
A
Q2 - Q1 > Q3 - Q2
Mean < Median < Mode
