Book a Demo

Topics

Statistics

Categorical Data II (collecting and displaying)

Numerical Data (Collecting and Displaying)

Two Categorical Variables

Types of Data

Create and interpret dot plots I

Create and interpret dot plots II

Create and interpret line graphs (real life)

Create and Interpret Scatterplots

Data Collection Investigation

Methods for Data Collection (Investigation)

Questioning in data collection (Investigation)

Collecting Data - A personal investigation

Create and interpret graphs involving time

Create and interpret frequency tables

Practicalities of Obtaining Data (investigation)

Create and interpret stem and leaf plots

Statistical Displays - A review

Interpret sector graphs

Lesson

Practice

Real Life Data - Misleading Graphs

Dodgy pie charts (Investigation)

Cropped Graphs (Investigation)

Graphs not to scale (Investigation)

Misleading pictograms (Investigation)

Graphs with broken axes (Investigation)

Shape of data

Real Life Data - Opinion Polls (Investigation)

Statistics and the weather (Investigation)

Number of Observations

Recognising the centre of data

Recognising the spread of data

Recognising the shape of data

Mean

The problem with average (Investigation)

Median

Mode

Range

Mean, median mode and range (calculation from graphs and charts)

Mean, median mode and range (find missing data)

Mean, median mode and range (comparing data sets)

Mean, median, mode and range (combined set)

Write your own maths test (Investigation)

How the shape affects choice of centre and spread

Where is the centre? (Investigation)

Grouped Data

Frequency Tables and Grouped Data

Statistics on grouped data

Identify Outliers

Effects of Outliers

Book a Demo

United Kingdom England

Key Stage 3

Interpret sector graphs

Lesson

Practice

Interactive practice questions

A technology company wishes to see what MP3 players people are using. They took a small sample and found the following:

Apple: $156$156

Sandisk: $19$19

Samsung: $32$32

Other: $74$74

A pie chart is divided into four sectors, each representing a different technology company and each labeled with letters. The colors of the sectors are yellow-green, green, purple, blue and red, arranged in a clockwise manner. The yellow-green sector is labeled "C" and is the largest sector. The red sector is labeled "B" and is the second largest sector. The purple sector is labeled "D" and is the third largest sector. The blue sector is labeled "A" and is the smallest sector.

Which sector represents Samsung?

Easy

< 1min

Some non-profit organisations were asked how many operations they are running. The results are given below:

Easy

3min

Mr $Brown$ did a survey to find out how students usually spend their spare time. Then he recorded the data in the form of a picture graph.

Use the key to answer the following questions:

Easy

1min

The adjacent circular diagram represents the results of grade 8 class president elections for the year $2010$ .

Easy

< 1min

Interpret sector graphs

Interactive practice questions

What is Mathspace

About Mathspace