Easier to just calculate odds of neither Davey or Ian hitting bullseye: .1 * .2 = .02 or 2%
When Davey and Ian playing together:
Combined probability of hitting a bull's eye will be -
90% + 10% x 80% = 98% (If Davey fails to hit, when going first)
80% + 20% x 90% = 98% (If Ian fails to hit, when going first)
Clearly, more than 97% probability by Alex, so Alex definitely made a BAD bet.
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Guest Message by DevFuse
RockmondMember Since 03 May 2012
Offline Last Active Jul 25 2012 04:13 PM