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Comment: Re:The "false positives" thing really does matter (Score 2) 86

by raynet (#46442037) Attached to: New Blood Test Offers Early Warning for Alzheimer's Onset

Think about pregnancy tests. If it shows positive, you most likely are. If it's negative, there's chance you might still be pregnant.

And your example is of a test that has false positives and false negatives.

The OP is right in that the 90% accuracy is not very useful until we know how common Alzheimer's is in the population taking the test

Good example of this was 99% accurate HIV test if it is applied to random sampling of all people. As HIV is so rare, if 100.000 people take the test, it will flag 1.000 as having HIV even when don't and correctly identify 10 real HIV cases and miss 1. (numbers pulled from memory and probably not accurate)

Comment: Re:What assholes (Score 2) 142

by raynet (#46097847) Attached to: Oracle Broadens Legal Fight Against Third-party Solaris Support Providers

Yup, Oracle is right on this case. The companies can provide support for Solaris, as in how to fix and configure things and also distribute OpenSolaris but distributing Solaris updates that have been downloaded from Oracle's password protected support site or providing login credentials to Oracle's support site is not ok.

The generation of random numbers is too important to be left to chance.

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