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Nov 15, 2021 at 8:41 comment added Sara There seems to be a minor mistake. () =E(phi((x-b)/a)), not ()=E(phi((x-a)/b)). Since it's just swaping a and b, I couldn't edit (must edit more than some number of words).
Jul 1, 2013 at 13:59 history edited Did CC BY-SA 3.0
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Jul 1, 2013 at 7:36 comment added Did As already explained.
Jul 1, 2013 at 6:40 history edited Did CC BY-SA 3.0
added 76 characters in body
Jul 1, 2013 at 6:35 history answered Did CC BY-SA 3.0