10.5: Investigations of variation Flashcards
1
Q
Technique for making measurements
A
Random sampling
2
Q
Random sampling
A
The best way to eliminate bias.
3
Q
Minimising the effect of chance
2 ways
A
Large sample size
Use stats tests on data
4
Q
Shape of the normal distribution curve
A
Bell shaped
5
Q
Skewed distribution
A
Curve shifted to 1 side
6
Q
2 measurements of distribution curve
A
Mean and standard deviation
7
Q
Mean on distribution curve
A
Max height
8
Q
Standard deviation on distribution curve
A
Measure of width of curve
