The average return on equity investments (without reinvestment of dividends) is about 18% over the past 31 years. Does it mean that every year you got 19%? The answer is no. Such ‘zero standard deviation return’ is possible only in CERTAIN debt instruments. In equity investments there have been years of +242% as well […]

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Understanding mean, median, mode, standard deviation, regression, reversion to the mean – is a pre-requisite to understand financial markets. Let us see some simple examples: It rained 90mm in Mumbai on 22nd July. If it rains like this for 6 months continuously, Mumbai will be drowned. It was 43* C in Lucknow on 23rd May. […]

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Understanding mean, median, mode, standard deviation, regression, reversion to the mean – is a pre-requisite to understand financial markets. Let us see some simple examples: It rained 90mm in Mumbai on 22nd July. If it rains like this for 6 months continuously, Mumbai will be drowned. It was 43* C in Lucknow on 23rd May. […]

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