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{{a| | {{a|stats|}}{{d|Stochastic|/stəˈkæstɪk/|adj|}} | ||
Of an independent event, to be random: to have a calculable [[probability]] of occurring that is less than one and greater than zero. To be predictable by reference to probability only. | Of an independent event, to be random: to have a calculable [[probability]] of occurring that is less than one and greater than zero. To be predictable by reference to probability only. | ||
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The next word uttered by a conscious human is neither deterministic not stochastic. It is not governed by, or explainable in terms of, probabilities. | The next word uttered by a conscious human is neither deterministic not stochastic. It is not governed by, or explainable in terms of, probabilities. | ||
The price of a stock market index at a point in the future ''seems'' stochastic, in that it must be a number and that number must | The price of a stock market index at a point in the future ''seems'' stochastic, in that it must be a number and that number must be between zero and the total value of all issued currency in the world, but it isn’t. You can’t assign [[probabilities]] to dependent events controlled by human agency, as [[Standard deviation|David “25-Sigma-Several Days-In-A-Row” Viniar]] would — probably? — tell you. So it really isn’t stochastic. | ||
What Elon Musk is going to say on [[Twitter]] tomorrow is ''uncertain''. There is no way of predicting it, or even assigning a probability to it. It is ''not even random''. | What Elon Musk is going to say on [[Twitter]] tomorrow is ''uncertain''. There is no way of predicting it, or even assigning a probability to it. It is ''not even random''. | ||