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Precision issues

• To: mathgroup at smc.vnet.net
• Subject: [mg73502] Precision issues
• From: mickey <micky at hotmail.com>
• Date: Tue, 20 Feb 2007 06:21:10 -0500 (EST)
• Organization: Ohio State University

Hi,

I am calculating certain integrals numerically and get back a number. 
Now, is it possible to determine how many digits is that answer accurate 
to?

E.g.,

NIntegrate[ Exp[-p^2 - q^2], {p, 0, 10}, {q, 0, 10}, Method ->
     MonteCarlo[24], MaxPoints -> 1000000]

Gives,

0.791249

How many digits is this answer accurate to?

Thanks,
-M