presenting data - graphs Flashcards
dependent variable should be on the _ (________) axis
y (vertical)
independent variable should be on the _ (__________) axis
x (horizontal)
numerical scales must be
linear
linear =
each division is the same size
graphs ____ need to start from 0,0
dont
the scale must be
continuous
the scale cannot have
scale breaks
bar chart is used for ________ data
discrete
discrete data =
whole numbers
bar chart is used for _____ variables
named
in a bar chart you leave ____ between the bars
gaps
histogram is used for __________ data which is
continuous
histograms data is
grouped
continuous data =
numerical
in histograms there are ____ between the bars
no gaps
in a histogram it is drawn to show
the highest and lowest values of the group
line graphs are used for __________ data
continuous
line graphs data is
not grouped
if there is a clear pattern in a line graph
draw a line of best fit
if there is not a clear pattern in a line graph
join the points with straight lines
