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Hi Hen,

Sorry for late reply and thank you so much for help

I think I can help!

the images you attached were very helpful.

in calculating the AP, the number 1 is because as we move along the list of results, the first number was Relevant, so at this point the number of relevant outcomes, divided by the total number examined so far is 1/1 = 1

the next number s 2/3.  this is because the next time we come across a Relevant outcome we are on the 3rd term.  the 2 represents the number of Relevants which has come up so far and the 3 represents how many terms have been looked at so far.  and so on.

does this help?

may I ask where you are studying?

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