Edexcel AS Biology Unit 3 9th May 2016 Official Thread

There's a pattern in the exams,

jun 09: membrane
jan 10:garlic
jun 10:enzymes
jan 11:minerals
jun 11;fibres
jan 12:vitamin
jun 12:caffeine
jan 13:toti
jun 13:mitosis
--------
jan 14:membrane
jun14:garlic
jan 15:enzymes
june 2015 --> mineral
jan 16: Fibres
June 16:Vitamin??

So basically, it's really likely to actually be Vitamin C

if they overlap, it is NOT reliable, coclutions should not be made

How do we write a reference ASAP reply please thanks

maybe take values of 10,000?

Oh yes, overlapping standard deviations DO make the data unreliable, what i meant was that in general, If a table shows high SD then the data is unreliable.

How do anomalous values affect validity and reliability and how do we deal with them?

does overlapping values increase the VALIDITY or reliability ????????
and how does it effect the validity ..like what do we write???

hello guys when are you doing ur unit 3 bio tomorrow ??

hello guys when are you doing ur unit 3 bio tomorrow ??

It decreases both actually,
we just need to mention whether or not there is an overlap and where it is for reliability.

For validity just mention the same as above and that due to overlapping, difference in values is not significant.

hello guys when are you doing ur unit 3 bio tomorrow ??