41 lines
		
	
	
		
			946 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			946 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| ---
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| id: 5900f4f21000cf542c510004
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| title: 'Problem 389: Platonic Dice'
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| challengeType: 5
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| forumTopicId: 302053
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| dashedName: problem-389-platonic-dice
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| ---
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| 
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| # --description--
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| 
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| An unbiased single 4-sided die is thrown and its value, T, is noted.T unbiased 6-sided dice are thrown and their scores are added together. The sum, C, is noted.C unbiased 8-sided dice are thrown and their scores are added together. The sum, O, is noted.O unbiased 12-sided dice are thrown and their scores are added together. The sum, D, is noted.D unbiased 20-sided dice are thrown and their scores are added together. The sum, I, is noted.
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| 
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| Find the variance of I, and give your answer rounded to 4 decimal places.
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| 
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| # --hints--
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| 
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| `euler389()` should return 2406376.3623.
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| 
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| ```js
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| assert.strictEqual(euler389(), 2406376.3623);
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| ```
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| 
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| # --seed--
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| 
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| ## --seed-contents--
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| 
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| ```js
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| function euler389() {
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| 
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|   return true;
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| }
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| 
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| euler389();
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| ```
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| 
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| # --solutions--
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| 
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| ```js
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| // solution required
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| ```
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