Friday 25 August 2017

Bivariate Statistics - Cheat Sheet

Statistics (Bivariate) - Internal  3 credits - Literacy/Numeracy
Correct use of the PPDAC cycle

Problem - What is the relationship between
Plan - number of trials (30) and detail about how you are going to collect data
Data - Table
Analysis - Scatterplot
Conclusion - Point, Explain, Example
ACHIEVED
PPDAC + Relationship and trend
MERIT
PPDAC + Strength of relationship (in context) and explanation
EXCELLENCE
PPDAC + Example (in context). Limitations of the investigation, Interpolation and Extrapolation
Literacy Strategy:
Mnemonic
PPDAC Cycle and PEE chain
Give one Get one
Teaching Strategy
Trend line slopes uPPositive relationship, both variables increase
Trend line slopes dowN, Negative relationship, one variable increases, while other decreases

(when you have a strong relationship, you are close to someone)

Strong relationship: Data is CLOSE to the trend line

Moderately strong relationship: Some Data is CLOSE and some data is FAR from the trend line

Weak relationship: Data is FAR from the trend line

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