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An  event has a probability of 0.5. How do I evaluate realtive attainment. For example how do I evaluate 10 out of 10 compared to 2 out of 2. Clearly they are both 100% but how much better is 10 out of 10? it cannot simply be 5 times better.  Or 10 out of 10 to 4 out of 9 indeed any value of achievement comparison

 Apr 28, 2020
 #1
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With a probability of 0.500

2 out of 2 times occurs 1 our of every 4 times (  (1/2)2  =  1/4 )

while 10 out of 10 times occurs 1 out of every 1024 times ( (1/2)10  =  1/1024 ).

 

1 out of every 1024 times is 1/256th as likely to occur as 1 out of every 4 times (because 1024 / 4  =  256).

 

Or, 1 out of every 2 times is 256 times as likely to occur as 1 out of every 1024 times.

 Apr 28, 2020
 #2
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Thanks how about 4 out of 9 compared to 10 out of 10

Guest Apr 28, 2020

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