Last Activity: 11 Years ago
0.815361224
2
This problem can be done like this
desirable cases/sample space =1- undesirable cases/sample space
i.e.,1- 30x29x28x27x26x25x24x23x22x21/30x30x30x30x30x30x30x30x30x30=0.81536122
The answer is 20% as 2/10*100=20% or by using sample space
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