chapters · 6
The Coordinates Of Data
Six terms mapping how we collect, slice, and intercept the chaos of living systems: population is the ocean, sample is the glass, subset is the partition, cohort is the fleet, probe is the plumb line, and snapshot is the frozen frame.
→The Shape Of Data
Four words that trace the silhouette hidden inside every dataset: distribution maps the overall shape, skewness measures the lopsided pull, variance captures how far things scatter, and normal is the bell-shaped baseline everything else deviates from.
→The Center Of Numbers
Four words that give numbers their meaning by creating reference points: average pools and redistributes, mean balances like a ruler, baseline is the world before you touched it, and normalize translates measurements into a common language.
→Signal In The Noise
Four words for reading the edges of data: outlier is the point that refuses to belong, anomaly is the rupture in regularity, threshold is the line where everything changes, and cluster is the gravity that pulls similar things together.
→When Data Shifts
Four words for watching data move: drift is the slow slide away from truth, lag is the delay between cause and effect, cascade is one failure triggering the next, and plateau is the flat line where progress stalls.
→The Line Forward
Four words for reading the future from the past: regression draws the line through scattered points, correlate links what moves together, inflection is the moment the curve bends, and extrapolate extends the known into the unknown.
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