Post by Daniel Lee

What STATISTICS concepts are asked in data interviews? Here's a CHEATSHEET ↓ ① 𝗞𝗻𝗼𝘄 𝘁𝗵𝗲 𝗶𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗴𝗮𝗺𝗲 Interviewers will throw two styles of questions at you. ▶ Conceptual - Explaining the definition of a concept ▶ Case - Application of stats in business cases ② 𝟴𝟬/𝟮𝟬 𝗥𝘂𝗹𝗲 Don't waste studying ANY concept. Focus on the top 20% concepts asked in 80% interviews. These are ↓ ▶ 𝗨𝗻𝗶𝘃𝗮𝗿𝗶𝗮𝘁𝗲 𝗦𝘁𝗮𝘁𝘀: Mean, Median, Mode, Standard Dev, Variance, Covariance, Correlation, Population, Sample, Nominal, P-Value, Significance Level, The Simpson's Paradox, Selection Bias ▶ 𝗛𝘆𝗽𝗼𝘁𝗵𝗲𝘀𝗶𝘀 𝗧𝗲𝘀𝘁𝗶𝗻𝗴: Z-Test, T-Test, Proportion Test, Variance Test, Variance Test, ANOVA, Chi-Squared Test, Goodness of Fit, Non-Parametric Tests, Type 1 & 2 Errors ▶ 𝗥𝗲𝗴𝗿𝗲𝘀𝘀𝗶𝗼𝗻 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴: OLS, confidence interval, prediction interval, logistic regression, regression model assumptions, model diagnostic checks, R-Square vs R-Square adjusted, AIC, BIC, CP Statistics ③ 𝗡𝗼𝘄 𝗔𝗰𝗲 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄𝘀 𝘄𝗶𝘁𝗵👇 📕 𝗝𝗼𝗶𝗻 𝗗𝗦 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗕𝗼𝗼𝘁𝗰𝗮𝗺𝗽: https://lnkd.in/egCcmuCr 📘 𝗝𝗼𝗶𝗻 𝗠𝗟𝗘 𝗜𝗻𝘁𝗲𝗿𝘃𝗶𝗲𝘄 𝗕𝗼𝗼𝘁𝗰𝗮𝗺𝗽: https://lnkd.in/e5VaYyTz 📙 𝗔𝗕 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝗖𝗼𝘂𝗿𝘀𝗲: https://lnkd.in/eZyxQs5x 📗 𝗣𝘆𝘁𝗵𝗼𝗻 𝗖𝗼𝗱𝗲: datainterview.com/coding 👉 Smash 👍 and follow Daniel Lee for data & AI