Alphabetical
mean
[noun]
In statistics, mean commonly refers to the arithmetic mean, also called the average, which is one measure of the mid-point of a dataset. The mean and median approach one another in datasets that approach a normal distribution, but can differ substantially in datasets with skewed distributions. Compare to median. The mean is calculated by obtaining the sum of the values in a dataset and dividing that sum by the number of data points, as in the formulas shown.
Appears in modules:
- Acids and Bases I Definitions, pH and neutralization
- Animal Ecology Competition, predation, and cooperation
- Atomic Theory II Ions, neutrons, isotopes and quantum theory
- Chemical Equations Using shorthand to show balanced reactions
- Chemical Reactions II Reaction kinetics
- Circulation in the Atmosphere Earth's tilt, orbit, rotation, and the redistribution of energy
- Comparison in Scientific Research Uncovering statistically significant relationships
- Data Analysis and Interpretation Revealing and explaining trends
- Earth's Atmosphere Composition, temperature, and pressure
- Factors that Control Earth's Temperature Energy from the sun and greenhouse gases
- Introduction to Descriptive Statistics Using mean, median, and standard deviation
- Introduction to Inferential Statistics Describing patterns and relationships in datasets
- Introduction to Paleoanthropology Bones, stones, and tools
- Kinetic-Molecular Theory Molecule collisions, the mean free path, and modern KMT
- Linear Equations Relationships with two variables
- Natural Hazards and Risk Where Earth processes and society intersect
- Nuclear Chemistry Radiation, half-life, and nuclear reactions
- Nuclear Chemistry I Radiation, half-life, and nuclear reactions
- Properties of Liquids Intermolecular forces, cohesion, adhesion, and viscosity
- Statistical Techniques Constructing a confidence interval
- Statistics in Science Origins of descriptive and inferential statistics
- Stoichiometry The proportional nature of chemical reactions
- Substances Pure substances and mixtures
- The Carbon Cycle Geology, biology, and the impact of human activities
- The Periodic Table of Elements IV Chemical families
- The Periodic Table of Elements V Periodicity
- Uncertainty, Error, and Confidence Characterizing natural variability and human error
- Uncovering the Mysteries of Chronic Mountain Sickness The work of Fabiola Léon-Velarde
- Using Graphs and Visual Data in Science Reading and interpreting graphs
- Water in the Atmosphere The factors that influence evaporation and condensation
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