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Physics / Chemistry / Bio P5 help

saudha

saudha

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hassam said:
this is wat m telling from experience....whenevr u see the word solubility ......ITS ALWAYS A CURVE !!!
Click to expand...
its not always a curve Q2 for o/n 2010 ..... the question says :draw the line of best fit.... and it is a straight line......
 
saudha

saudha

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i just did the q and checked from ms.... i mean it is not always a straight line.........or always a curve
 
angelgirl:)

angelgirl:)

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k50 said:
angelgirl:)
Hello, thanks for posting that up too :)....please answer my doubt about best fit line...am very unsure how exactly to draw?

My questions are -
1.) Should we have equal points on both sides of the line of best fit?
2.) Is it ok if none of the points are not on the best fit line, but scattered very close to it?
3.) Any good tips for drawing best fit line?
Click to expand...
ya line of best fit means equal points should be there on both the sides of the line..iam not sure for ur 2nd point but i guess yes if i would be there i would draw a straight line no matter if ni point touvhes the best fit line...hmmmm no i dont have any good tips...sorry
 
angelgirl:)

angelgirl:)

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ousamah112 said:
i always have problem with plotting graphs.
How to choose appropriate scale?
Click to expand...
to choose appropriate scale, from ur table see the biggest valu and the lowest value, subrtact it and then divide it by the large square no...for eg if u hav 10 large square in ur gragh and ur large value is 0.26 and small value is 0.003...then 0.26-0.003/8 0r 9 =u get 0.03...always divide 1 or 2 digit less from the no,. of large square present...hope u know wats large squar and wats small square in the graph...now the first large value is 0.03...2nd is 0.03+0.03=0.06...keep on adding 0.03 to all the values...be carefull do not multiply it...:)
hope u get my explaination...
 
ousamah112

ousamah112

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angelgirl:) said:
to choose appropriate scale, from ur table see the biggest valu and the lowest value, subrtact it and then divide it by the large square no...for eg if u hav 10 large square in ur gragh and ur large value is 0.26 and small value is 0.003...then 0.26-0.003/8 0r 9 =u get 0.03...always divide 1 or 2 digit less from the no,. of large square present...hope u know wats large squar and wats small square in the graph...now the first large value is 0.03...2nd is 0.03+0.03=0.06...keep on adding 0.03 to all the values...be carefull do not multiply it...:)
hope u get my explaination...
Click to expand...
thankx ..:)
jazak Allah..
 
S

sararash

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hey how do v fynd da absolute uncertainities in xc in da table......from summer 2010 p.51 Q.2......HELP PLZZ.......its phy p5
 
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