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Old 01-29-2015, 11:14 AM
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Default Uniform Distribution Ratios

Quick question about a level 4 CA question I came across... I was able to manipulate my solution to arrive at the same answer, but the solution they gave me did not seem that straightforward. I understand they are setting up the b-x/b-x ratio in order to solve for b and then substitute into b-a to solve for a... but I am at a loss in figuring out if this is actually an attribute of uniform distributions, or just another manipulation? How do they get 3b-15 and etc..?

It might just be the fact that it's been a foggy morning for me, as I feel like the reasoning is quite simple.

Thanks!

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Old 01-29-2015, 11:25 AM
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Think about the definition of a uniform distribution and its properties. As for the second question it's just straight arithmetic...
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Old 01-29-2015, 12:07 PM
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Another way to think about it is that they just cross-multiplied and multiplied everything by 6 in the same step.
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Old 01-29-2015, 12:08 PM
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Originally Posted by Abelian Grape View Post
Think about the definition of a uniform distribution and its properties. As for the second question it's just straight arithmetic...
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Another way to think about it is that they just cross-multiplied and multiplied everything by 6 in the same step.

I see it now. Thank God for you guys, and for coffee.
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