# NavList:

## A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

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Re: On potential error introduced by rounded values
From: Peter Fogg
Date: 2005 Jan 12, 16:55 +1100

24.0, 24.1, 24.2, 24.3, 24.4 makes five chances of being rounded down to 24.

Yep, that’s a good question. Unfortunately I don’t know the answer. It seems to be a statistical anomaly, that boys have more potential numbers than girls!

It doesn’t change the argument much. One chance in five to the power of six is 0.000064, still remote. If these numbers are correct. I don’t pretend to be a statistician.

In order for the maximum error of 3.0 to be achieved there must be 6 values of something.5 each.

Sent: Wednesday, 12 January 2005 4:35 PM
To: ffive@TPG.COM.AU
Subject: RE: [NAV-L] On potential error introduced by rounded values

What about rounding 24.1, 24.2, 24.3, 24.4 to 24?

Craig

-----Original Message-----
Sent: Wednesday, January 12, 2005 00:29
Subject: Re: [NAV-L] On potential error introduced by rounded values

"I don't see how he has calculated that number"

There are six chances that a number rounded to, say, 24, could have been rounded from: 23.5, 23.6, 23.7, 23.8, 23.9, 24.0 - so one chance in six that the number was 23.5.

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