🤥 Statistics cheatsheet

General

• 🍔 Sample size
• 👥 Population size
• 🎯 Median
• 🧮 Mode
• ⌀ Mean
• ↔︎ Variance var(x)
• σ Standard deviation
• 💥 Effect Size
• chi-saquared statistics
• Degrees of freedom

Hypothesis

• θ: population parameter
• 𝜶: significance level = type 1 error rate
• β: test power = type 2 error rate
• N: total number of results
• X: number of true results
• T: critical value
• p: P-value