A classic multivariate dataset introduced by Ronald Fisher. Contains measurements of sepal and petal dimensions for 50 iris flowers — ideal for exploring correlations between morphological features.
50 rows4 colsCorrelationRegressionANOVA
Student Exam Scores
Fictional but realistic dataset of 30 students showing the relationship between study hours and exam performance. Demonstrates positive correlation between effort and achievement across math and science.
30 rows3 colsRegressionCorrelation
Customer Satisfaction Survey
Likert-scale survey data from 40 respondents rating their experience across four dimensions. Useful for exploring patterns in ordinal rating data and testing internal consistency of survey instruments.
40 rows4 colsSurveyLikertDescriptive
Monthly Sales Data
Three years of monthly revenue data showing clear seasonal patterns with peaks in December and troughs in February. Perfect for time-series exploration and trend analysis.
36 rows2 colsTime SeriesTrend
A/B Test Results
Conversion data from a website A/B test comparing a control page against a variant. Each row represents one variant with visitor count and conversions — ready for proportion testing.
2 rows2 colsA/B TestProportions
Clinical Trial
Simulated clinical trial data with three treatment groups receiving different dosages. Response scores vary by group, making this ideal for ANOVA and group comparison analyses.
30 rows3 colsANOVAt-Test
Marketing Campaign
Performance data from 20 marketing campaigns across different channels and budgets. Includes spend, lead counts, and cost-per-lead calculations for regression and efficiency analysis.
20 rows4 colsDescriptiveRegression
Weight Loss Study
Paired before-and-after weight measurements from 25 participants in a 12-week program. Designed for paired t-test analysis to determine if the intervention produced a significant effect.