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Further Statistics 2

The second statistics option paper: fitting lines by least squares, continuous densities, and the intervals and tests that follow when the variance is unknown.

Further Maths · 11 topics.

• Least squares regression and residuals
• Continuous random variables: density and distribution functions
• Mean, variance and skewness of continuous variables
• The continuous uniform distribution
• Correlation coefficients: product moment and Spearman
• Testing a correlation coefficient
• Combinations of normal random variables
• Estimators, standard error and confidence intervals
• Comparing two normal means
• Testing variances: chi-squared and the F-distribution
• Confidence intervals and tests with the t-distribution