Sampling Flashcards
1
Q
what do we need to ensure samples are NOT
A
make sure they aren’t bias and that they are representative
2
Q
what do we use sampling for
A
getting information about population of organisms in the environment
3
Q
what are the three types of sampling
A
systematic, random and stratified
4
Q
what does systematic sampling involve
A
even spread throughout the environment/sample area
5
Q
what is random sampling
A
using a random number generator all points are decided at totally random. Gives each point equal chance of selection
6
Q
what are negatives of random sampling
A
there could be bunching, take more if this happens
7
Q
what do you use for sampling
A
a quadrat
8
Q
how many coordinates should you get
A
20
