Mean
Average: sum divided by count.
Public flashcard set
Statistics Basics
Core stats words for school and undergrad.
school math statistics
Flashcards
Median
Middle value when data are ordered.
Mode
Most frequent value.
Range
Difference between max and min.
Variance
Average squared deviation from the mean.
Standard deviation
Square root of variance; spread measure.
Population
Entire group being studied.
Sample
Subset used to estimate the population.
Correlation
Measure of association between variables.
Causation
One variable produces change in another.
Histogram
Bar chart of frequency by bins.
Outlier
Unusually extreme data point.
Probability
Likelihood of an event (0 to 1).
Null hypothesis
Default claim of no effect/difference.