Statistics Flashcards
1
Q
What is nominal data?
A
Categorical- named variables (like eye colour)
2
Q
What is ordinal data?
A
Categories- but there’s an order (gold, silver, bronze or 1st, 2nd and 3rd)
3
Q
What is interval data?
A
Data with a meaningful scale (temperature)
4
Q
What is ratio?
A
Data with a meaningful scale with an absolute 0
5
Q
How do we describe data?
A
Measures of central tendency
Mean, mode, median
6
Q
What is mean?
A
Average set of values
7
Q
What is mode?
A
Most common
8
Q
What is median?
A
Middle number
9
Q
What is range?
A
Difference between the highest and the lowest
10
Q
What are the measures of dispersion?
A
Range
Interquartile range
Standard deviation
11
Q
What is interquartile range?
A
Middle 50%
12
Q
What is standard deviation?
A
Variation in a set of values
