GCSE Statistics

Jordan-Jay Robinson
Mind Map by , created over 4 years ago

What you need to revise for the GCSE statistics exam - some of the nodes have little notes attached with tips and reminders

102
4
0
Tags
Felix Ulrich-Oltean
Created by Felix Ulrich-Oltean over 4 years ago
Andrea Leyden
Copied by Andrea Leyden over 4 years ago
Jordan-Jay Robinson
Copied by Jordan-Jay Robinson over 4 years ago
STEM AND LEAF DIAGRAMS
Elliot O'Leary
BELIEVING IN GOD- UNIT 1, SECTION 1- RELIGIOUS STUDIES GCSE EDEXCEL
Khadijah Mohammed
Unit 1: Business Studies GCSE
Libby Rose
Hitler's rise to Chancellorship Jan '33
Simon Hinds
Restless Earth Notes
Gladys Mba
FREQUENCY TABLES: MODE, MEDIAN AND MEAN
Elliot O'Leary
SAMPLING
Elliot O'Leary
Key policies and organisations Cold War
Elisa de Toro Arias
GCSE Maths: Algebra & Number Quiz
Andrea Leyden
CUMULATIVE FREQUENCY DIAGRAMS
Elliot O'Leary
GCSE Statistics
1 3. Collecting Data
1.1 Sampling methods
1.1.1 Stratified
1.1.2 Systematic
1.1.2.1 Random starting place, every nth person where n is pop / sample
1.1.3 Random
1.1.3.1 Every item has an equal chance
1.1.3.2 Using random number tables
1.1.4 Quota
1.1.5 Key words: sampling frame, sampling unit, census, population
1.2 Capture / recapture is just two equiv fractions

Annotations:

  • tagged    tagged in recapture ---------  =  --------------------------- total               recapture size
1.3 Surveys
1.3.1 Suitable questions (open/closed)
1.3.2 Pilot surveys
1.4 Data types
2 4. Graphs and Charts
2.1 Histograms
2.2 CF / boxplots
2.2.1 Skew
2.2.2 Outliers
2.3 Choropleth
2.4 Comparative pie charts

Annotations:

  • Remember to comment on the proportions (angle of slice) and the actual numbers (area)
2.5 Stem and leaf digrams
2.6 Misleading graphs
2.6.1 Axes
2.6.2 Labels
2.6.3 Thickness / colour
2.6.4 3D effect
3 1. Processing Data
3.1 Standard deviation
3.2 Mean
3.3 Median/Quantiles by Interpolation
4 2. Correlation
4.1 Spearman's Rank
4.1.1 Tied ranks
4.1.2 Interpreting the result
4.2 Line of best fit
4.2.1 Equation of the line (gradient / intercept)
4.2.2 Make predictions
4.2.3 Extrapolation
5 5. Time
5.1 Index numbers

Annotations:

  • Get the scale factor or multiplier by doing: eventual value / original value
5.1.1 Chain-based
5.1.2 Base year
5.1.3 Weighted
5.2 Time series table and graph
5.2.1 Moving averages
5.2.2 Trend line
5.2.3 Seasonal variations
5.2.3.1 Mean seasonal variation / seasonal effect
5.2.3.1.1 Predict future value
6 6. Probability
6.1 Venn diagrams

Annotations:

  • Work from the inside out - remember P(A) is the probability of the whole A circle. Also, remember the box and the number of items outside the circles.
6.2 Tree diagrams
7 7. Distributions
7.1 Normal
7.1.1 Features, percentages
7.1.2 QA charts, warning, action limits
7.2 Binomial
7.3 Discrete uniform

Media attachments