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Topics
Data
Types of Data
Statistical Questions
Statistical Attributes
Choice of Graph for Data (Investigation)
Create and interpret dot plots
Create and interpret frequency tables
Create and Interpret Bar and Pareto Charts
Create and interpret histograms
Statistical Displays - A review
Create and interpret histograms and polygons
Create and interpret cumulative frequency tables
Create and interpret cumulative frequency polygons
Lesson
Practice
Number of Observations
Recognising the centre of data
Mean
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)
Comparisons and Predictions
Mean, median, mode and range (combined set)
How the shape affects choice of centre and spread
Central Tendency Suitability
Limitations of Measures of Centre and Spread
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India
Class IX

Create and interpret cumulative frequency polygons

Lesson
Practice

Outcomes

9.SP.S.1

Introduction to Statistics: Collection of data, presentation of data – tabular form, ungrouped/ grouped, bar graphs, histograms (with varying base lengths), frequency polygons, qualitative analysis of data to choose the correct form of presentation for the collected data.

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