Descriptive statistics Flashcards
1
Q
Inferential statistics
A
Statistics that help us to draw conclusions about POPULATIONS
2
Q
Descriptive statistics
A
Statistics that summarize a set of DATA
3
Q
Mode
A
Most common
4
Q
Median
A
Middle number
middle score = (number of scores + 1) / 2
5
Q
Mean
A
mean = sum of scores/number of scores
6
Q
Range
A
difference between the highest and lowest scores in a distribution
7
Q
Inter-quartile
A
measure of variability de- fined as the difference be- tween the 75th percentile and the 25th percentile; it is a difference in scores, not percentages
Semi-interquartile is half of that
