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Top 7 most important statistical analysis concepts that have helped me as a Data Scientist. This is a complete 7-step beginner ROADMAP for learning stats for data science. Let's go:
Step 1: Learn These Descriptive Statistics Mean, median, mode, variance, standard deviation. Used to summarize data and spot variability. These are key for any data scientist to understand what’s in front of them in their data sets.
2. Learn Probability Know your distributions (Normal, Binomial) & Bayes’ Theorem. The backbone of modeling and reasoning under uncertainty. Central Limit Theorem is a must too.
3. Hypothesis Testing: P-values, confidence intervals, t-tests. Learn how to validate findings and quantify uncertainty. Don’t skip Type I/II errors—they’re real-world pitfalls. Type 2 errors especially.
4. Correlation: Pearson or Spearman coefficients show relationships, but causation isn’t guaranteed. Watch for confounders to avoid bad calls. Pearson alone has helped me identify tons of business insights.
5. Regression: Linear for prediction, logistic for classification. Master coefficients, R-squared, and assumptions (normality, linearity).
6. Experimental Design: Random sampling, A/B testing, statistical power. Get the setup right or your conclusions will crumble. Sample size matters.
7. Practical Stats Transformations: Outlier detection (IQR, z-scores), data transformations (log, standardize). Clean, prep, and interpret like a pro.
8. There's a new problem that has surfaced that is changing data science-- Companies NOW want AI. AI is the single biggest force of our decade. Yet 99% of data scientists are ignoring it. That's a huge advantage to you. I'd like to help.
On Wednesday, June 11th, I'm sharing one of my best AI Projects: How I built a Time Series Forecasting Agent with Python Register here (1570+ registered): <a target="_blank" href="https://learn.business-science.io/ai-register" color="blue">learn.business-science.io/ai-register</a>
That's a wrap! Over the next 24 days, I'm sharing the 24 concepts that helped me become a data scientist. If you enjoyed this thread: 1. Follow me @mdancho84 for more of these 2. RT the tweet below to share this thread with your audience <a target="_blank" href="https://twitter.com/815555071517872128/status/1929922419109572998" color="blue">x.com/81555507151787…</a>