# Edexcel Statistics AS Tutorials

Outlined below are the topics covered for Edexcel Statistics AS course

It is advisable to check the official Edexcel Statistics AS specification in case of any changes: specification

## Collecting Data

## Understanding population, census and samples

## Representing Data

## Mean

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## Median and Quartiles

- Median, lower, upper quartiles and interquartile range for discrete data
- Exam Questions - Median, lower, upper quartiles and interquartile range for discrete data
- Cumulative frequency curves
- How to interpret class intervals
- Estimating the median, quartiles, percentiles from a grouped frequency table
- Exam Questions - Estimating the median from a grouped frequency table
- Exam Questions - Estimating the median from a histogram

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## Standard Deviation

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## Statistical Diagrams

- Stem and leaf diagrams
- Box and whisker plots
- Exam Questions - Box and whisker plots
- Exam Questions - Stem and leaf diagrams and box and whisker plots
- Histograms
- Exam Questions - Histograms
- Histograms - How to find the width and height of a class interval
- Exam Questions - Histograms, Finding the length and width of a rectangle

## Discrete Random Variables

## Discrete Probability Distributions

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