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

Number of Observations

Recognising the centre of data

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

Class IX

Number of Observations

Interactive practice questions

$Ms$ $Barnett$ has just marked a set of homework. The scores she gave were:

$99,26,36,31,2$99,26,36,31,2

How many pieces of homework did $Ms$ $Barnett$ mark?

$\editable{}$

Easy

< 1min

$Aaron$ has been recording the number of goals he has scored in soccer matches so far this year.

$1,2,4,2,3,4,2,2,1,3,2$1,2,4,2,3,4,2,2,1,3,2

Easy

< 1min

$Hannah$ has been trying to find out the number of m&m's that are in an average sized bag. The bar graph below shows the recorded number of m&m's found in each bag she has checked.

Easy

1min

The frequency polygon below shows the scores awarded to a $mathletes team$ during several recent competitions.

Easy

1min

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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About Mathspace