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--- gcse_maths_statistics [2026/02/13 09:08] – hjb
+++ gcse_maths_statistics [2026/02/26 14:19] (current) – hjb
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 use and interpret scatter graphs of bivariate data; recognise correlation and know that it does not indicate causation; draw estimated lines of best fit; make predictions; interpolate and extrapolate apparent trends while knowing the dangers of so doing
+==== Sampling and Bias ====
+==== Sampling Methods ====
+==== Collecting Data ====
+==== Mean, Median, Mode and Range ====
+==== Averages and Spread ====
+==== Frequency Tables — Finding Averages ====
+==== Grouped Frequency Tables ====
+==== Cumulative Frequency ====
+==== Histograms and Frequency Density ====
+==== Other Graphs and Charts ====
+==== Scatter Graphs ====
+==== Probability Basics ====
+==== Listing Outcomes and Expected Frequency ====
+==== The AND / OR Rules ====
+==== Tree Diagrams ====
+==== Relative Frequency ====
+==== Revision Questions for Section Six ====