Quartiles Flashcards
1
Q
Divide the data set into quarters
A
Quartiles
2
Q
Offers a skeleton of the data
A
Five number summary
3
Q
Visualization of the 5 number summary
A
Box plot
4
Q
Any datum that doesn’t fit in with the rest of the data set
A
Outlier
5
Q
Outlier equation
A
1.5 x IQR rule
6
Q
Tells us how many SD’s some value is from the mean of its distribution
A
Z- score
7
Q
Z score equation
A
Z= observation- mean/ standard deviation
8
Q
When do you use the empirical rule?
A
For data that is unimodal and symmetric