measures of central tendency and dispersion Flashcards
1
Q
what are the measures of central tendency
A
- mean
- median
- mode
2
Q
what is the mean
A
- adding up all values
- dividing by the number of values
3
Q
what is the median
A
- middle value
- arranged from high to loww
4
Q
what is the mode
A
most frequently occurring value
5
Q
what are measures of dispersion
A
- range
- standard deviation
6
Q
what is the range
A
- lowest value taken from the highest value
7
Q
what is standard deviation
A
tells us by how much on average each score deviates from the mean
