08:17 Jun 21, 2017 |
English language (monolingual) [PRO] Mathematics & Statistics | |||||||
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| Selected response from: Piyush Ojha United Kingdom Local time: 02:34 | ||||||
Grading comment
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SUMMARY OF ALL EXPLANATIONS PROVIDED | ||||
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5 +4 | the y-axis has been scaled so that the maximum y-value is one |
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Discussion entries: 11 | |
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the y-axis has been scaled so that the maximum y-value is one Explanation: The area under a probability density curve is, by definition, 1 (unity), so that the maximum value is typically less than 1. In the case here, the y-axis has been scaled so that the maximum y-value of the curve is 1. Strictly speaking, it isn't probability density any more. -------------------------------------------------- Note added at 24 mins (2017-06-21 08:42:07 GMT) -------------------------------------------------- One can recover the actual probability density from the 'normalised' curve by dividing the normalised y-value everywhere by the area under the 'normalised' curve. |
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