Statistics for Science - Outcome 1 Flashcards
Use and Understand Basic Statistical Concepts
1
Q
describe qualitative data
A
- data that is descriptive by nature
- words are used to describe this data
- only allows very minimal statistical analysis to be carried out in the form of simple graphs and charts
2
Q
describe quantitive data
A
- numerical data
3
Q
what are the two types of quantitive data?
A
continuous and discrete
4
Q
describe discrete quantitive data
A
- numerical data that can only take on specific values
ie. number of students in class, number of bacteria on a plate - can only take exact values
5
Q
describe continuous data
A
- numerical data that can only be measured to a certain degree of accuracy ie. weight, height or temperature
6
Q
explain what is meant by random sampling
A
every member of the population has an equal chance of being selected
7
Q
what is meant by the mean?
A
the average
8
Q
define standard deviation
A
the average distance from the mean value of all values in a set of data
9
Q
what is meant by the coefficient of variation?
A
it expresses the standard deviation as a fraction/percentage of the mean
10
Q
A
