Mathematical Methods CAS Exam 1 Discussion - How was it??

[luken93]

Can someone jog my memory as of what question 8 was?

Pr(A'intersectionB), given Pr(AUB) = something

Cheers, yeeeww

[patricktsmith]

for the probability question
if you started the equation by saying Integral from 3.5 - 2 blah blah blah
but throughout all your working out you stupidly worked out 3.5 - 0
would i get any marks

ovasly both my answers were wrong as for
a) i got 3/8
b) 1 ovasly wrong haha

would i get anymarks?

[ellecee]

wait for the second last questoin, would u still get marks if you subbed BC=2CD into ur derivate and shows it equals to zero???

I don't see why not. It was an 'if' question and not a 'show that' question so I suppose we're allowed to use the supplied values. (I hope! As   I also subbed in. :S)

[tazza]

wait for the second last questoin, would u still get marks if you subbed BC=2CD into ur derivate and shows it equals to zero???

I don't see why not. It was an 'if' question and not a 'show that' question so I suppose we're allowed to use the supplied values. (I hope! As   I also subbed in. :S)

It was a hence question, isn't that what we were supposed to do? How did everyone else do it?

[extcar]

okay phew i dunno how anyone else did it, is there any other way of doing it??

[ttn]

crap, for qn 4a, did you have to state what c and d equaled? I just left it in the square root from

[Max Peters]

Would I loose marks if I said that p cannot equal zero because 0<p<1 when in fact p can equal 0 or 1?

[ttn]

Don't think p can equal zero as they flipped two heads one tail.

[b^3]

crap, for qn 4a, did you have to state what c and d equaled? I just left it in the square root from

wait did we have to say c=2, d=8 OR c=8, d=2
or just one of those?

[extcar]

crap, for qn 4a, did you have to state what c and d equaled? I just left it in the square root from

yeah you did
man, was the domain of the trig question [0, pi] ?? 

[Max Peters]

I'm pretty sure both were acceptable as there was no other information given about c and d. For example if c>d or d>c.

[arock]

crap, for qn 4a, did you have to state what c and d equaled? I just left it in the square root from

yeah you did
man, was the domain of the trig question [0, pi] ?? 

They asked for Range and period didn't they?

[b^3]

crap, for qn 4a, did you have to state what c and d equaled? I just left it in the square root from

yeah you did
man, was the domain of the trig question [0, pi] ?? 

They asked for Range and period didn't they?

Range + perid was 3a.
Solving was 3b

[extcar]

the one after that questoin, the solving one

[BoredSatan]

Don't think p can equal zero as they flipped two heads one tail.

no they didnt.. they asked you to calculate the probability in terms of p.

if p=0 then the pr of getting 3 heads is 0
and the probability of getting 2 heads and tail is also 0. thus it makes perfectly good sense.