Useful Maths - A Guide for Professionals

Introduction

This webinar will provide you with a quick refresher of some useful maths you probably learned at school but which got lost with all the other maths which you never really needed to remember.

What You Will Learn

This webinar will cover the following:

• Percentages
• Calculating a percentage change
• Dealing with VAT calculations
• Understand why a 10% decrease does not reverse a 10% increase
• Why two years of 10% growth is not the same as 20% growth
• How to calculate and average growth rate
• Averages - remember mode and median? The meaning and what they are useful for
• Probability
• How to deal with real-life probabilities (e.g. the likelihood of a product failing in x years; or the chance of winning your case in court)
• Expected value
• Bayesian reasoning - to help explain why some probability calculations are so counter-intuitive
• Statistical significance
• What is means
• How to interpret data which relies on a claim of statistical significance
• Spreadsheets
• How using a spreadsheet can help make all these calculations easier and reduce the chances of making a mistake
• Maths conundrums - The Monty Hall problem and Benford’s Law

This webinar was recorded on 4th November 2021

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