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"url": "https://numbas.mathcentre.ac.uk/api/questions/11940/?format=api",
"name": "Use piecewise CDF to find probabilities at given points, and the expectation.",
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"full_name": "Newcastle University Mathematics and Statistics",
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"edit": "https://numbas.mathcentre.ac.uk/question/11940/use-piecewise-cdf-to-find-probabilities-at-given-p/?format=api",
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"description": "<p>Given a piecewise CDF $F_X(b)$ which is discontinuous at several points, find the probabilities at those points and also find the value of $F_X(b)$ at a continuous point and the expectation.</p>\n<p>This cdf is a step function and is therefore the cdf of a discrete random variable. This should be stated somewhere in the statement or the solution. Apart from this the question is correct.</p>"
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