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keahi702
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What is the
difference between a dependent variable and independent variable?
 Dependent variable (aka response)
 variable that is measured: may respond to independent variable
 Independent variable (aka controlled
 or manipulated)variable under control of the experimenter

What goes on
the xaxis(horizontal), independent or dependent?
Independent or controlled variable

What are the
general features of s figure or table and its caption?
Figure (Graphs):
Must have some quantitative data
 More flexible and visually oriented
 for complex information
Every axis should have a title
 Units must be specific on each axis,
 if applicable
 Caption is placed below figure/graph
 and contains a description
Tables:
 Qualitative or categorical
 quantitative data
Best for small numbers of categories
 Every column (and, if appropriate,
 row) should have a title
Units must me specific
 Captions are places above the table
 and have a description

What types of
information are appropriate to show in a table? A scatter plot? A line plot? A
bar graph? A pie graph?
 Table: Qualitative or categorical quantitative
 data
 Scatter plot: Quantitative continuous
 x and yaxes
 Line plot: Quantitative continuous x
 and yaxes
 Bar graph: Quantitative categorical or
 qualitative xaxis and quantitative continuous yaxis
 Pie graph: Categorical labels: measured variable
 sensibly expressed as part of a single whole (proportion)

What are
quantitative data? Qualitative data? Categorical data? Continuous data?
 Quantitative data order of values
 matters
 categoricalgroups which can be
 ordered
continuousnumerical values
Qualitative datacannot be ordered
categorical only

Essay Question: Lou was studying
the relationship between height at the shoulder and mass for many different
animals. He chose a set of animal
species to represent a range of heights, then weighed them.
What are his independent and
dependent variable?
Specify whether each variable
is quantitative or qualitative? If they are quantitative, categorical or
continuous?
Graph the data using
appropriate figure. Don’t forget the
label for each axis and the caption.
(Animal 1 was 10cm tall and
weighed 5grams, Animal 2 was 25cm tall and weighed 13grams, Animal 3 was 50sm
tall and weighed 40 grams, Animal 4 was 100cm tall and weighed 120grams)

