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Biology unit 6- range bars and error bars (+ tips)
A range bar is just mark the lowest value and highest value on graph and join it with a line. This is done in bar graphs -
STATISTICAL TESTS - BIOLOGY UNIT 6
Yes! It's opposite for Mann Whitney and Wilcoxon -
A2 Biology- Practical Unit May 13th
I don't think Edexcel require a detailed explaination. They just require you to know how to draw conclusions from them. But here you go: http://www.slideshare.net/SharmilaChristy/stats-test-12873802#btnNext -
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Pre released material/Scientific article June 2014 (A2 biology EDEXCEL)
For practicals, these are more than enough. For better understanding, do past papers while referring to examiner report. It's like a detailed mark scheme. -
STATISTICAL TESTS - BIOLOGY UNIT 6
The value you'll be given in the question e.g. "T test was carried out and the value was found to be 2.34". Then you'll be given a table, you check the value at 0.05 significance level (this is our critical value, e.g 2.00). So since the value we're given is greater than the critical value and... -
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STATISTICAL TESTS - BIOLOGY UNIT 6
In all experiments (Apart from Mann Whitney and Wilcoxon) if the value is greater than the value at 5% (95% confidence level) then we reject null hypothesis and say there is a significant difference. For Mann Whitney and Wilcoxon it's the opposite. T-test, chi test are used for stuff like bar... -
Wrote my name in the wrong place on my edexcel igcse human biology paper ...how bad is it?
It doesn't really matter. Edexcel use candidate number to identify candidates. So as long as you registered with proper name, it doesn't matter if you spelled your name wrong e.t.c. So chill, and concentrate on the rest of your exams.- Agent Z
- Post #3
- Forum: O-Levels / GCSEs / IGCSE
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Pre released material/Scientific article June 2014 (A2 biology EDEXCEL)
Could be possible as Q1, same goes for Electrophoresis -
Pre released material/Scientific article June 2014 (A2 biology EDEXCEL)
I beg to differ, Ecology has already appeared a total of 3 times (incl sample paper) and it appeared in a 2012 paper. I am backing habituation to come, it has never come as an experiment description question. -
Pre released material/Scientific article June 2014 (A2 biology EDEXCEL)
Thanks for the answers on the scientific article! :)