Dakika 1 za kusoma
Averages and spread: mean, median, mode, range and standard deviation
Three ways to describe a typical value, two ways to describe how spread out data is, and when to use each.
Takwimu
Wastani, mtawanyiko na uwezekano.
Makala 2
Dakika 2 za kusoma
Statistics basics: z-scores, percentiles, quartiles and combinations
Three statistics skills that come up again and again: turning a z-score into a percentile, finding quartiles in a data set, and counting with the combination formula.