Biology AS Edexcel Unit 3

[Ioana Diala]

Anyone know where I can find the June 2012 and January 2013 paper? PLEAASSEEE URGENT. :/

 

[teddy cookie 94]

then just RELAXXXXX..IF YOU DID ALL PP. AND CAN EASILY IDENTIFY THE VARIABLES AND LIST HOW TO CONTROL THEM and have a clear idea about each practical of the nine practicals(many suspect that MITOSIS experiment will be the one in this exam) but dont rely on that,make sure you know every step done and why was it done..AND UR CLEAR ABOUT RANGE BAR(variability), ERROR BAR, SDs, mode ,median, mean, outliers, correlation,causation, reliability, validity,accuracy systematic errors and random errors, ethical,social environmental and economical issues, bibliography (reference) . YOU JUST HAVE TO RELAXXXXXXXXX..and dont wrry no hard work goes in vain! GOOD LUCK

Can you explain to me how to draw error bars?

 

[T19]

Can you explain to me how to draw error bars?

highest value and the lowest value

 

[teddy cookie 94]

highest value and the lowest value

Highest and lowest value of what? the mean so there will be two points on the graph?

 

[T19]

Highest and lowest value of what? the mean so there will be two points on the graph?

for example a question about conc .
the question says at conc 1% and puting the time 4trials you take the highest of these values and the lowest and the draw the error bar to that point
hope that helped

 

[teddy cookie 94]

for example a question about conc .
the question says at conc 1% and puting the time 4trials you take the highest of these values and the lowest and the draw the error bar to that point
hope that helped

Thanks soo much really nervous right now :/ i keep forgetting how to do sd and eb

 

[T19]

Thanks soo much really nervous right now :/ i keep forgetting how to do sd and eb

good luck

 

[abdullahkhan196]

Everyone Good Luck for biology.. Well yeah its going to be hard :/ but never give up.

 

[Lost_Life]

Everyone Good Luck for biology.. Well yeah its going to be hard :/ but never give up.

i hope there would be a low curve

 

[abdullahkhan196]

i hope there would be a low curve

Hoping for the same thing!! Good Grades could be easier to get then

 

[Lost_Life]

Hoping for the same thing!! Good Grades could be easier to get then

yup, i have my exam in about 3 hours

 

[T19]

yup, i have my exam in about 3 hours

me too at 11

 

[Lost_Life]

me too at 11

i have at 11:30!!!!!!11

 

[abdullahkhan196]

yup, i have my exam in about 3 hours

Same here.. Tension everywhere.

 

[T19]

i have at 11:30!!!!!!11

from what country r u ? because at first the time table that was given to us the exam was at 12 then the gave us a new one at 11:00

 

[Lost_Life]

In tissue culture experiment, why do plants continue to grow even when covered?

 

[Lost_Life]

from what country r u ? because at first the time table that was given to us the exam was at 12 then the gave us a new one at 11:00

In Dubai

 

[Lost_Life]

Same here.. Tension everywhere.

I cant bear the stress

 

[T19]

In Dubai

jordan

 

[Lost_Life]

jordan

.... I'm scared