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Mind Map
by
Andrea Leyden
, created
more than 1 year ago
What you need to revise for the GCSE statistics exam - some of the nodes have little notes attached with tips and reminders
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statistics
gcse
edexcel
gcse maths
gcse exams
maths
masters of marketing
Created by
Felix Ulrich-Oltean
over 10 years ago
Copied by
Andrea Leyden
over 10 years ago
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1543897
mind_map
2019-03-28T10:28:14Z
Stratified
Random starting place,
every nth person where n
is pop / sample
Systematic
Every item has an
equal chance
Using random number tables
Random
Quota
Key words: sampling
frame, sampling unit,
census, population
Sampling methods
Capture / recapture is
just two equiv fractions
Suitable questions
(open/closed)
Pilot surveys
Surveys
Data types
3. Collecting Data
Histograms
Skew
Outliers
CF / boxplots
Choropleth
Comparative pie charts
Stem and leaf digrams
Axes
Labels
Thickness / colour
3D effect
Misleading graphs
4. Graphs and Charts
Standard deviation
Mean
Median/Quantiles by Interpolation
1. Processing Data
Tied ranks
Interpreting the result
Spearman's Rank
Equation of the line
(gradient / intercept)
Make predictions
Extrapolation
Line of best fit
2. Correlation
Chain-based
Base year
Weighted
Index numbers
Moving averages
Trend line
Predict future value
Mean seasonal
variation / seasonal
effect
Seasonal variations
Time series table and graph
5. Time
Venn diagrams
Tree diagrams
6. Probability
Features, percentages
QA charts, warning, action limits
Normal
Binomial
Discrete uniform
7. Distributions
GCSE Statistics
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