Exploring data Flashcards
1
Q
Steps in a science enquiry
A
Observation
Question
Theory/Model/Idea
New hypothesis
Predictions
Experiment
Reject false hypothesis
Revise theory
2
Q
Types of data
A
Nominal (Categorical)
Ordinal (Categorical)
Discrete (Quantitative)
Continuous (Quantitative)
3
Q
Nominal data
A
Clear categories:
e.g. Sex: Male or Female
4
Q
Ordinal data
A
Anything that can be ranked:
e.g. Questionnaire answers
5
Q
Discrete data
A
Number of things:
e.g. Number of colonies
6
Q
Continuous data
A
Amount of things:
e.g. Concentrations or time
7
Q
Measures of central tendency
A
Mean
Median
Mode
8
Q
Standard error of mean equation (SD)
A
SEM = s / (square root) of n
9
Q
Parametric statistics
A
Assume a distribution
10
Q
Non-Parametric distribution
A
Do not assume a distribution
