Math blog
Techniques explained carefully, with worked examples step by step, from mental math to college.
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Logarithms: definition, properties and worked examples
Understand what a logarithm is, when it exists, the product, quotient and power rules, change of base and how to solve exponential equations, with worked examples.
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Mean, median and mode: how to calculate them and when to use each
Calculate the arithmetic mean, weighted mean, median and mode with worked examples, and learn which measure of central tendency to use with outliers or categorical data.
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