Descriptive statistics involves summarizing and organizing data so it can be easily understood. Common tools include measures of central tendency (mean, median, mode) and measures of variability (range, variance, standard deviation).
Inferential Statistics: Uses sample data to make generalizations about a larger population.
Variance: Measures how much values in a dataset differ from the mean value.
Histogram: A graphical representation showing the frequency distribution of a set of continuous or discrete variables.