17 terms

mrdelemeesterTEACHER

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.