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7th Grade Science: Data Analysis
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Terms in this set (17)
Data Analysis
Process of inspecting, evaluating, and modeling data with the goal of discovering useful relationships or conclusions that can support decision making.
Analyze
To examine, methodically, looking for patterns and trends
Error
A mistake
Random Error
Errors that do not occur in any predictable pattern.
Systematic Error
Errors which occur repeatedly that often result from inaccurate measurements or improper training
Conclusion
A summary of whether the data supports or does not support (rejects) the hypothesis.
Mean ("average")
a value calculated by finding the arithmetic sum of a set of numbers (add them together) divided by the quantity of terms in the set.
Normal Distribution
A particular statistical distribution in which most of the observations fall fairly close to the mean, and individual values are found equally dispersed on each side of the mean
Bell Shaped Curve
Name for a shape that represents a normal distribution.
Graph Paper
Paper printed with a grid of fine lines used to plot mathematical functions and data.
Spreadsheet
Computer application used to organize and analyze data.
Cartesian Graph
A graph that contains two numbered lines (an "x" and "y" axis) that cross at zero.
X-axis
The horizontal line of the graph that can contain both positive and negative numbers.
Y-axis
The vertical line of the graph that contains both positive and negative numbers.
Slope
Calculated by finding the ratio of the "vertical change" divided by the "horizontal change" (Rise over Run)
Correlation
Identifying meaningful relationships between variables in an experiment.
Significant
Data or Results considered to have an important difference from other values in an experiment.
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