Guest iblearner Posted May 9, 2016 Report Share Posted May 9, 2016 Are you prepared for Math HL guys? What topics are you guys focusing on most? Reply Link to post Share on other sites More sharing options...
Guest Posted May 9, 2016 Report Share Posted May 9, 2016 calculus Just ,.... Hell.... Reply Link to post Share on other sites More sharing options...
Guest iblearner Posted May 9, 2016 Report Share Posted May 9, 2016 1 minute ago, Lovelife said: calculus Just ,.... Hell.... Right?! Reply Link to post Share on other sites More sharing options...
IBdoingnothing Posted May 9, 2016 Report Share Posted May 9, 2016 hey guys, can any of you solve this for me? thanks @kw0573 @Vioh Reply Link to post Share on other sites More sharing options...
Guest iblearner Posted May 9, 2016 Report Share Posted May 9, 2016 49 minutes ago, IBdoingnothing said: hey guys, can any of you solve this for me? thanks @kw0573 @Vioh What year and time zone is this question from? Reply Link to post Share on other sites More sharing options...
kw0573 Posted May 9, 2016 Report Share Posted May 9, 2016 @IBdoingnothing Hints: Are these questions asking for probability or just favourable outcomes? 10 a) How many choices for largest card? How many choices for the lower 3 cards? b) p(>= 2 out of 4) = p(2 out of 4) + p(3 out of 4) + p (4 out of 4). How many even cards are here? How many ways to pick 2 out of 4 even. How many to pick 2 out of 5 odds? How many to pick 3 out of 4 even. How many to pick 1 out of 5 odds? ... Just for example, I'll do p (4 out of 4 even) for b). Even: 4 even numbers combine 4: 4C4 = 1. Odd: 5 odd numbers combine 0. 5C0 = 1. 1 * 1 = 1 There is exactly one such way, namely {2, 4, 6, 8}. 1 Reply Link to post Share on other sites More sharing options...
IBdoingnothing Posted May 9, 2016 Report Share Posted May 9, 2016 Got it, thanks @kw0573 Its from nov 2014 p1 @iblearner All the best everyone! 1 Reply Link to post Share on other sites More sharing options...
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