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0-2 Graphing Basics
Transcript of 0-2 Graphing Basics
Types of Graphs
Setting Up Axes
Interpreting Information from Graphs
Direct v Inverse Relationships
Standard Deviation & Standard Error
display of data in discrete categories to compare variable conditions to each other
display of frequency of continuous data in categories to show distribution across variable
display of data that is connected in some way (ex: time, temperature)
used to identify correlation or trends between two variables when relationship is unknown
illustrates distribution of component parts of a whole (percent distribution)
Task 1: What type of graph would you use to illustrate the data shown below?
Task 2: What would be an appropriate title for this graph?
informative & descriptive: what is the experiment & what is being measured?
standard deviation (s)
standard error (SE)
measures the spread (variance) in data
large s = a lot of variability in data
small s = data clustered around mean
how confident are you that your data is representative of the larger population?
on AP Biology Equations & Formulas Sheet
estimate of the likelihood the sample mean matches the actual population mean
mean +/- 1 SE = 67% confidence population mean within range
mean +/- 2 SE = 95% confidence population mean within range
change in dependent variable per unit of independent variable
reaction rate = slope of line
Task 3: Calculate the rate of oxygen production from 60 to 120 seconds.