Chp.2 Def

Question 1

raw data

Answer 1

when data are obtained

Question 2

frequency distribution

Answer 2

lists each category of data and the number of occurrences for each category of data

Question 3

Relative frequency

Answer 3

is the proportion (or percent) of observation within a category and is found using the formula
- Relative frequency = frequency/sum of all frequencies

Question 4

relative frequency distribution

Answer 4

lists each category of data together with the relative frequency

Question 5

Pareto graph

Answer 5

a bar graph whose bars are drawn in decreasing order of frequency or relative frequency

Question 6

pie chart

Answer 6

circle divided into sectors. Each sector represents a category of data.

Question 7

histogram

Answer 7

constructed by drawing rectangles for each class of data