A standard problem for computer security is that passwords that have to be typed on a computer keyboard are comparati...

Tyler808 on July 27, 2022

Why is B wrong?

"in a small initial trial" how does that "small initial trial guarantee the conclusion? and that is why I choose B.

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Emil-Kunkin on July 27, 2022

Hi Tyler,

The small sample would normally be an issue, but take a look at how the conclusion is structured, in particular, the beginning of the final sentence. We are told that If we are able to replicate this on a bigger scale then we can conclude that it will work. That is, the author is not just relying on a small sample, but is saying that we could trust this result once we confirm it with a larger sample

JosephH on July 4 at 03:35AM

So should we take the phrase "in an operational setting" to mean a larger sample group? I guess I thought that it just meant it was in an official implimentation, not a trial setting. Since it didn't mention a specific number, I thought that "operational setting" could be the same amount of people, just not in an unofficial "trial" setting

Emil-Kunkin on July 15 at 10:55PM

I wouldn't necessarily take it to mean that. However since here the author distinguished the phrase operational setting from a small initial trial, I think we can safely assume that this is bigger than that small initial trial.