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Methods of Biological Sciences
General Biology Unit 1
22
Biology
Undergraduate 1
06/21/2010

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Term
Assumption
Definition
A statement that is accepted or believed to be true without evidence.
Term
Bar Graph
Definition
A graph of data in which the independent variable is categorical, rather than continuous.
Term
Categorical Data
Definition
Variables that have only certain discrete values.
Term
Continuous Variable
Definition
A variable that can have any value between two limits; exhibiting a spectrum of values from one extreme to another.
Term
Control
Definition
Group in an experiment in which the independent variable is categorical, rather than continuous.
Term
Data
Definition
Information (measurements, observations, experimental results)
Term
Dependent Variable
Definition
The variable in a functional relationship that varies as a result of changes in the independent variable; the responding variable in an experiment. 
Term
Experiment
Definition
A test of the accuracy of the procedural faults.
Term
Experimental Error
Definition
Inaccuracy due to procedural faults.
Term
Extrapolation
Definition
Estimating a value outside the range of measured data.
Term
Histogram
Definition
A graph of the frequency distribution of a set of data.
Term
Hypothesis
Definition
A causal explanation of natural phenomenon.
Term
Independent Variable
Definition
The variable in a functional relationship that is believed to be the cause of changes in other variables; the manipulated variable in an experiment.
Term
Inference
Definition
A statement that is accepted or believed to be true on the basis of evidence.
Term
Interpolation
Definition
Estimating a value within the range of measured data.
Term
Line Graph
Definition
A graph of a functional relationship between two data sets.
Term
Mean
Definition
The average value in a sample.
Term
Prediction
Definition
A statement of an outcome or result made in advance of actual knowledge of that outcome or result.
Term
Replication
Definition
Procedure which uses repeated tests to minimize sampling error.
Term
Sampling Error
Definition
Inaccuracy due to inadequate sample size.
Term
Treatment
Definition
Group(s) in an experiment in which the independent variable is manipulated.
Term
Variable
Definition
A factor that varies of changes.
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