"x% of people got this right."

For a problem with $a$ views, $b$ attempts, and $c$ solvers, it appears that $\frac{c}{b}$ of people got it right. This means that $b$ people could have attempted the problem and all succeeded on the third try and 33% would have gotten the problem right, though 100% of the people who attempted and $\frac{c}{a}$ of the viewers did.

Unless, the theory is that every attempt represents the usage of a certain approach towards the problem and people are assumed to be uniformly disposed to starting with any single approach. I could imagine that this rate might then refer to the predicted success rate if the problem were to be tried once per person, in which case I've nothing to say.

Easy Math Editor

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Math	Appears as
Remember to wrap math in `$` ... `$` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
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Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$