Chapter 2 - Describing Data

Question 1

Frequency Table

Answer 1

A grouping of qualitative data into mutually exclusive classes showing the number of observation in each class
Ex. table of types of apartments and the number of each in a neighbourhood.

Question 2

Class Frequency

Answer 2

Number of observations in each class

Question 3

Class Midpoint

Answer 3

Point that divides a class into two equal parts. This is the average of the upper and lower class limits

Question 4

Class Interval

Answer 4

Class interval is obtained by subtracting the lower limit of a class from the lower limit of the next class