GCSE 2016 Handling Data TGS

Honelako gehiago

OCR A 16 - Working waves

Tim Pillinger‑k egina

history and motivation

valeria Hernandez‑k egina

The Future of Technology

Kelly Cone‑k egina

THINK Climate

Sally N‑k egina

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