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Predictions for GCSE Edexcel Maths (Calculator paper)

So definitely trigonometry and trial & improvement.......
Original post by Perfection Ace
So definitely trigonometry and trial & improvement.......


Mean of table, histograms, stratified sampling, hard volume/area questions, sine and cosine rules, compound interest, reverse percentages, F.P or C.F, nth term mathematically similar shapes.
Original post by junayd1998
Mean of table, histograms, stratified sampling, hard volume/area questions, sine and cosine rules, compound interest, reverse percentages, F.P or C.F, nth term mathematically similar shapes.


Thankssss!! :smile:
revised too much trig todayfnally got my head round sine n cosine rule...-sigh
Definition of stratified sampling?
Original post by ameenatariq
Definition of stratified sampling?


Random sampling - where everyone within the population has an equal chance of being picked.

Startified sampling - Stratified sampling is a probability sampling technique wherein the researcher divides the entire population into different subgroups or strata, then randomly selects the final subjects proportionally from the different strata.

Learn both they have come in a maths gcse calc before, also you need to know a method for random sampling.

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