2.1 Variation Flashcards
1
Q
interspecific variation
A
when different species differ from each other
2
Q
intraspecific variation
A
when members of the same species differ from each other
3
Q
what does sampling do and what are the issues
A
takes a sample of a population and assumes its representative. bias and chance can lead to it not being representative
4
Q
random sampling
A
eliminate human influence as much as possible. Grid area, co-ordinates, intersections avoids bias. Large samples avoids chance
5
Q
2 factors affecting variation
A
genetics(distinct) and the environment(continuum)
6
Q
mean
A
maximum height of a normal distribution curve
7
Q
standard deviation
A
width of the curve, a measure of the spread of data around the mean
