A level bio help?

When drawing a scatter graph should you draw a line of best fit through most points or join the points together with straight lines?

Reply 1

Idk131

Original post by randomstudent0

join the points together for a scatter graph (if line graph always draw a line of best fit)

ok tysm

Reply 2

Reality Check

Original post by randomstudent0

join the points together for a scatter graph (if line graph always draw a line of best fit)

NOOO! This is completely wrong.

Original post by Idk131

When drawing a scatter graph should you draw a line of best fit through most points or join the points together with straight lines?

You draw a line of best fit, such that there are as many points above the line as below

Reply 3

Reality Check

Original post by randomstudent0

join the points together for a scatter graph (if line graph always draw a line of best fit)

Ok, so here's a scatter plot:

1200px-Scatter_diagram_for_quality_characteristic_XXX.svg.png

Off you go and 'join the points'...

Reply 4

Reality Check

Original post by Idk131

When drawing a scatter graph should you draw a line of best fit through most points or join the points together with straight lines?

Here is an example of what I mean by a line of best fit, such that there are as many points above the line as below. It's what it says: a line of 'best fit':

Reply 5

Idk131

Original post by Reality Check

Here is an example of what I mean by a line of best fit, such that there are as many points above the line as below. It's what it says: a line of 'best fit':

Ahh okay thank you x

Reply 6

randomstudent0

Original post by Idk131

ok tysm

okay I may or may not have just said something completely wrong like a literal idiot but if you do AQA biology, page 49 of this handbook explains what they expect in exams - sorry!

https://filestore.aqa.org.uk/resources/biology/AQA-7401-7402-PHBK.PDF

Reply 7

Reality Check