Graphs Flashcards
1
Q
What is the equation for frequency density
A
Frequency over class width
2
Q
What are 3 reasons a diagram could be misleading
A
Line is thick
Axis are not labelled
No title
3
Q
What is the equation for frequency
A
Frequency density x class width
4
Q
Why would you use a bar chart
A
when you are showing segments of information.
5
Q
Why would you use a stem and leaf diagram
A
It can be useful to find the mode median.
6
Q
What is a composite bar chart
A
Bars are stacked on eachother
7
Q
What is a vertical line graph
A
Bar chart with small lines
8
Q
What do you plot cumulative frequency diagrams against
A
The upper class of boundary
9
Q
What goes on y axis of a histogram
A
Frequency
10
Q
What goes on the y axis if the class widths are unequal for a histogram
A
Frequency density
