Categorie: Tutti - data - collection - frequency

da Chris Ryall mancano 8 anni

275

GCSE 2016 Handling Data TGS

Data handling involves various techniques to organize and interpret information effectively. Techniques include cumulative frequency, which involves summing up frequencies to understand data distribution.

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