Table & graphs Flashcards
1
Q
Why are bar graphs used?
A
To illustrate frequency distribution.
2
Q
Why are frequency tables used?
A
To list items and to show the number of times the items occur.
3
Q
Why are line graphs used?
A
To illustrate the relationship between two variables.
4
Q
Why are histograms used?
A
To show frequency distribution over a set of intervals (uses continuous data).
5
Q
Why are pie charts used?
A
They illustrate percentage frequency.
6
Q
How is percentage calculated?
A
(value/total value) x 100
