ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Mathematical Methods CAS => Topic started by: roly182 on November 06, 2008, 05:15:22 pm

Title: CNDT
Post by: roly182 on November 06, 2008, 05:15:22 pm: Hey guys, the cumulative normal distribution table was not in the formula sheet for exam 1 on the 07 exam.. therefore do we not need to know how to use it? I've just been using my calculator for these sort of problems. Thanks!
Title: Re: CNDT
Post by: shinny on November 06, 2008, 05:18:47 pm: Yeh we don't need to know how to use it. But although we don't get this table, that doesn't mean we can't do normal dist. tomorrow as often they'll give you Z values, or they may involve cases where you approximate $Pr(-1<Z<1) \approx 0.68$
Title: Re: CNDT
Post by: dekoyl on November 06, 2008, 06:45:29 pm: Just remember 68,95,99.7 :)