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Differentiate both side, when u differentiate any terms containing ý', just multiply it with dy/dx.View attachment 61255
what's the answer for 6 (i)?
Then simple algebra to make dy/dx the subject.
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Differentiate both side, when u differentiate any terms containing ý', just multiply it with dy/dx.View attachment 61255
what's the answer for 6 (i)?
B.I will get 40 in statistics and 55 in P3. will i get A? As score = 85 (b) 70%
Rizwan Javed Thought blocker
https://drive.google.com/open?id=0B3NebwGVUDjGMXg4TllYNkVrVWMView attachment 61430
How to solve the simultaneous equation and get the answer?
i get 0.6736 for r but marking scheme says 0.6 for r
I guess first part is not your problem, right? Though, mean = middle value in box - and - whisker diagram. Thus mid value is 51!Oct/Nov 2009 S1 P62 Q1 How to do this ??
View attachment 61439
aha yeah part ii) your answer is the ms answer so its correct .thanks a lot!I guess first part is not your problem, right? Though, mean = middle value in box - and - whisker diagram. Thus mid value is 51!
for part ii)
We know upper quartile means 0.75 probablity and lower quartile means 0.45 probablity as 0.45 is notgiven in the table thus consider 0.75 probablity and therfore z = 0.674,
CALCULATION :
upper quartile = 63
mean = 51
z = 0.674
0.674 = 63 - 51 / sd
sd = 17.80
do check my answers, m not sure as did S1 a year back
Oh sorry, yes its 0.25. Silly me.aha yeah part ii) your answer is the ms answer so its correct .thanks a lot!
btw why is lower quartile 0.45 ? it should be 0.25 ryt?
ln y = -kx^2 + ln AURGENT! Can someone please tell me how to find A?
Only few!Did somebody has worked solution of alevel maths p3 pastpapers?
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