Q12 (1 Viewer)

[HeroicPandas]

Re: probability question

according to terry lee and lost other people, its 2/5

I got 1/5
hopefully carry through error, or I'm dead

YES SAME i got 1/5 for part i xD

 

[mike12345678]

Re: probability question

yea i know it was pretty dumb of me. but what can we do now? haha

hopefully i get those 2 marks. very helpful in pushing my cause for an e4

 

[mike12345678]

Re: probability question

can someone explain how to actually do the whole question. i dont see the logic behind it. or improbably just over thinking it like i normally do

 

[Sindivyn]

Re: probability question

yea i know it was pretty dumb of me. but what can we do now? haha

hopefully i get those 2 marks. very helpful in pushing my cause for an e4

You'll should get them

 

[NickGero]

Can someone please help me out, for the parametric question, I stated that x(p) = x(c) therefore x= t, but then for y what I did was solve the two parametrics given simultaneously, which gave y = x^2/k, and then subbed in x = t, hence showing the y result holds and thus P lies on the parabola. This reasoning is starting to worry me, is it okay? ://

 

[NickGero]

Re: probability question

can someone explain how to actually do the whole question. i dont see the logic behind it. or improbably just over thinking it like i normally do

There's 5 possibilities, therefore in two turns there's 5x5 = 25 possible outcomes. 5 of these are draws (e.g. 1,1 2,2 ...). The other 20 of the possible outcomes are symmetrical, I.e equal chance for both of them, hence 10/25 = 2/5 chance of win.