Chapter 4: Exploring Data (Measures of Position (Standard Formula (),…
Chapter 4: Exploring Data
Students at university are classified by gender and class rank
to classify observations according to two identifiable characteristics
Relationship Between Two Variables
The data of the relationships between two variables
Interval scale for both variables
a graphical display, based on quartiles, that helps us picture a set of data.
Measures of Position
to determine the location of values that divide a set of observations into equal parts
Difficult to tell how the values within each class is distributed.
The exact identity pf each value is lost
Each numerical values are divided into two parts. The leading digit(s) becomes the stem of the trailing digit of the leaf.
groups the data as little as possible, while not losing the identity of an individual observation.