GCSE 2016 Handling Data TGS

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Data Collection

luonut Wendy Miner

Xbox one digging

luonut edwin nugroho

About Educo

luonut Colin Robertson

Depth of Knowledge on Web 2.0

luonut Jenny Thomas

Demo

Subtopic

Handling Data

Stem and Leaf

Key

Two way tables

Check totals match

2 variables (usually gender)

Cumulative frequency

add up frequencies

Box and Whisker Plots

Range & Inter Quartile Range

Median

Lower & Upper Quartile

Min & Max

Questionnaires

Not biased

Biased question or options

Wrong people

Wrong location

Time period, eg per day or month

Response boxes

Complete (more than)

Not overlapping

Data Collection Sheet

Tally & Frequency

Frequency Polygon

Join the points, straight lines

Plot the midpoints