box and whisker
scatter graph diagram
cumulative stem and leaf
frequency graph diagram
bar chart histogram
13 0 1 2 3 5 6 7
14 2 2 7 8
15 0 1 1 9
16 2 3 4 4 4 6
17 5 7 9 9 9
18 0 1 2 3 3 5
Key
13 0 represents 130 people
The Frequency is
graph /diagram shown on the
needs a key vertical axis
The median can A line of best
be read from fit ban be drawn
this graph / to make
diagram predictions
The frequency The frequency
is shown by the is shown by the
height of the area of the bars
bars
Two variables The leaves must
can be compared be ordered
The median is This graph /
used to draw diagram can
this graph / show correlation
diagram
The axes should There must be a
be labelled consistent scale
Points are Information
plotted at the about the
end of the distribution can
interval be read
Raw data can be Raw data cannot
retrieved be retrieved
Non numerical No numbers are
data can be used written on the
diagram
No gaps The axis need
between the not start at
bars (0,0)
Plotted points Plotted points
are not joined are always
together joined together
Can show Always used for
qualitative data quantative data
The quartiles The quartiles
can be read are used to
from this draw this
diagram/graph diagram
Particularly
good for
comparison
between
distributions