arithmetic mean
Sum divided equally
The arithmetic mean is the sum of a set of numbers divided by how many numbers there are—what most people simply call the average.
Add up the values, divide by the count: The arithmetic mean of 2, 4, and 6 is 4.
The term distinguishes this common calculation from other types of mean, such as the geometric mean or harmonic mean.
Addition's result
- totalComplete sum
- divideSeparate into parts
- additionJoining quantities mathematically
- averageArithmetic mean or ordinary
formula · computation · calculate · addends · quotient · numerator · denominator · summation
Data's typical value
- expected valueProbability-weighted outcome average
- standard deviationSpread around the mean
- varianceSpread around the mean
- normal distributionBell-shaped probability curve
dispersion · outliers · skewness · probability · inference · mode · distribution · bell curve
Standard for comparison
- baselineStandard for comparison
- deviationDeparture from expected path
- varianceSpread around the mean
- discrepancyDifference between expected and actual
differential · disparity · above average · below average · norm · threshold · gap · relative
Math using symbols
- textbookAcademic subject manual
- calculatorElectronic computation device
- homeworkStudent assignments for outside class
- examFormal knowledge assessment
lesson · curriculum · student · teacher · GPA · test scores · classroom · quiz
sum
Addition's result
average · formula · computation · calculate · addends · quotient · numerator · denominator · summation · result
central tendency
Data's typical value
- expected valueProbability-weighted outcome average
- standard deviationSpread around the mean
- varianceSpread around the mean
normal distribution · dispersion · outliers · skewness · probability · inference · mode · distribution · bell curve · regression
benchmark
Standard for comparison
discrepancy · differential · disparity · above average · below average · norm · threshold · gap · relative · percentile
algebra
Math using symbols
- textbookAcademic subject manual
- calculatorElectronic computation device
- homeworkStudent assignments for outside class
exam · lesson · curriculum · student · teacher · GPA · test scores · classroom · quiz · word problems
mean, means, median, arithmetic, arithmetical, arithmetically, arithmetician, arithmeticians, arithmetic sequence