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Topic: Percentage question
Replies: 6   Last Post: Feb 4, 2013 8:03 PM

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William Elliot

Posts: 2,637
Registered: 1/8/12
Re: Percentage question
Posted: Feb 3, 2013 9:37 PM
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On Sun, 3 Feb 2013, Anonymous wrote:

> I heard that lie dector results are correct 53 to 47%.

You heard wrong. If you heard correctly, it could have been
"lie dector results are correct 47 to 53% of the time".

> Am I correct in saying that this means that there is a 3% chance of the
> test being right and a 97% chance of it being wrong?

No. It indicates that lie decetors results are right about half the time.

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