Kategorie: Wszystkie - data - collection - frequency

przez Chris Ryall 9 lat temu

434

GCSE 2016 Handling Data TGS

GCSE 2016 Handling Data TGS

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