Statistics Flashcards
(15 cards)
1
Q
mode
A
number/ value that occurs most often
2
Q
standard derivation
A
how spread out numbers are –> measure of variation
3
Q
variance
A
average the squared differences from the mean
4
Q
frequency density
A
frequency/ class width
5
Q
how can you find the mode of grouped data?
A
you can only find the modal class:
- the classes have the same width: class with highest frequency
- the classes have different with: class with highest frequency density
6
Q
range
A
measure of variation (highest value - lowest value)
7
Q
quartile
A
divides data into 4 quarters
8
Q
median
A
divides data into 2 halves
9
Q
interquartile range
A
measure of variation (Q3-Q1)
10
Q
percentiles
A
divide data into 100
11
Q
outlier
A
Ausreißer in Daten
12
Q
cumulate frequency
A
running total
13
Q
bivariate data
A
two variables influence it
14
Q
casual correlation
A
change in one variable affects the other
15
Q
spurious correlation
A
change in one variable does not affect the other
