Course datasets

Every Bluebikes station — name, coordinates, docks, and municipality. The join partner for the trips data.

A workable sample of Boston Bluebikes bike-share trips from September 2021 — start/end stations, timestamps, and rider type.

The live, continuously updated 311 dataset on Analyze Boston — for when the 2025 snapshot isn't enough.

A year of Bostonians asking the city for help — every 311 service request from 2025, with type, neighborhood, and resolution timestamps.

Energy and water use reported by Boston's large buildings under BERDO — sustainability data with policy teeth.

Long-run daily temperature observations — seasonality, smoothing, and long-term trends.

A synthetic stream of health-event records for the Epidemic Engine — the raw material for DS-551's ingestion and streaming pipelines.

Top 50 actors by total US box-office gross, with per-film averages and their biggest movie.

Birth weight, gestation, and maternal health for 1,174 mother-baby pairs from the Child Health and Development Studies — the classic causality-vs-correlation dataset.

Player name, team, position, and salary for the 2015–16 NBA season — histograms with a long right tail.

Eruption durations and waiting times for the Old Faithful geyser — the classic two-cluster scatter plot.

Housing violations, complaints, and inspections for Boston rental properties — civic data with real housing-justice questions in it.

Compensation for every San Francisco city employee in 2015 — job titles, salaries, overtime, and benefits.

Average SAT scores and participation rates by US state — the textbook example of a lurking variable.

Highest-grossing films with unadjusted and inflation-adjusted gross — a lesson about units hiding inside a fun dataset.

Departure delays for United flights out of SFO — thousands of rows for sampling and the law of averages.

Birth data for US presidents — a tiny table for early table operations and date arithmetic.

Name, city, height, and completion year for notable US skyscrapers — heights, eras, and city skylines in one table.

A 2026 snapshot of the world's billionaires — name, net worth, industry, and citizenship. Great for rankings, group-bys, and skeptical questions about wealth data.

Annual world population estimates — the simplest possible time series for first plots and growth rates.