First steps in Statistics

These resources are designed to help you refresh your knowledge or get going with statistics for the first time.

On
 VideoWritten resourceExercise

Types of data

   
Introduction

Categorical vs numerical data

Nominal, ordinal, continuous

MASH guide to types of data Online exercises

Mean, median and mode

   
Mean, median and mode from listsKhan Academy VideosWebpageOnline exercises
Frequency Tables and Grouped Data

Calculating the mean from tables

Calculating the mean (grouped data)

Calculating medians from tables

Calculating medians (grouped data)

Maths Centre guide

Mean online exercises

Mean from grouped tables online exercises

Median online exercises

linear interpolation

Measures of spread

   
Range and interquartile rangeRange and mid-range

Range (includes exercises)

Interquartile range

Online exercises
Introduction to standard deviationStandard deviation explainedA very first introduction by MASHPractice problems

Data display

   
Data display principlesFive data storytelling tips

Displaying data

What graph should I use?

Graphics principles cheat sheet

Online Stat Book exercises

Online Exercise - Interpreting a table

Bar ChartsRepresenting dataOnline Stat Book webpageOnline exercises
HistogramsMASH Video on HistogramsOnline Stat Book WebpageOnline exercises
Pie chartsPie chartsMath Is Fun webpageOnline exercises
Scatter graphsMaking a Scatter GraphMath Is Fun webpageCorbett Maths exercises
BoxplotsCreating a boxplotHow to read boxplotsOnline exercises
Line graphsReading line graphsOnline Stat Book webpageCorbett Maths exercises

Contingency tables

   
IntroductionVideoWebpageCorbett Maths exercises

Normal Distribution

   
IntroductionStatquest videoWebpage 

Confidence intervals

   
IntroductionOnline Stat Book videoStat Book webpage 

Skew

   
An introduction to skewShapes of distributionsWhat is skewness?Khan Academy exercises
Two people sitting at a table looking at some work together
Two people sitting at a table looking at some work together

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