binomial! (1 Viewer)

[becany]

just out of curiosity...did anyone actually DO this part? was shits hard...i like bs the whole way through

 

[superbird]

binomials turn me on

 

[The Bograt]

I didn't even attempt the stuff the lat question, but I got the binomial probability ones...

 

[Sweet_Lemon]

its not only binomial... its full on MIXTURE of mathz!!!
wel... tried to differentiate tat last question...(since it's like 3marks) but didn't seems to get the write one~~

 

[fantasia]

first part was a series.

 

[mazza_728]

i did 1-(probability of katie getting no prizes).. is that wrong?

 

[Rorix]

yes i did, it was long but easy if you persist

 

[Dougie]

the binonial stuff has been in other papers, so it wasn't too bad...
can't remember which one though, and who cares now!!

 

[Willmaker]

i did 1-(probability of katie getting no prizes).. is that wrong?

I believe thats right (unless proven wrong). I ended up doing (p+q)^7 expanded it out and it worked it out to be 1-q^7 where q=9/10 which is prob that she wouldnt win.

 

[sub]

u expanded it? y not do binomial theorem it comes out quicker...
also last question, yeah i got to the last part, then i sorta fudged it to make it work...
hopefully ill only lose 1 mark for the fudge

 

[boz]

what did you guys get for 4) c) iii) i got 29 weeks ???

 

[Rorix]

30

29 is the same probability