Comprehensive study guide and lecture series on Science & Nature.
Pearson and Spearman correlation coefficients, simple linear regression, ordinary least squares, R-squared, and an introduction to multiple regression — Chapter 7 of the Statistics Basics series.
One-way ANOVA, the F-statistic, post-hoc tests, and chi-square tests for categorical data — Chapter 8 of the Statistics Basics series.
Time series components (trend, seasonality, cycle, irregular), moving averages, exponential smoothing, and an introduction to ARIMA — Chapter 9 of the Statistics Basics series.
A simulator that converts images to show how they appear through a dog's eyes. A scientific explanation of how dogs perceive color and how their vision differs from ours.
A clear, evidence-based guide to climate change — the science of greenhouse gases and global warming, global climate commitments and the Paris Agreement, how to calculate your carbon footprint, practical reductions in energy, transport, food, and consumption, corporate ESG responsibilities, climate impacts on sea levels and food security, and the real effectiveness of individual action.
Can humans beat chimpanzees at instant visual memory? Discover what brain science has revealed about the chimp test — and learn training strategies to sharpen your own cognitive abilities.
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