Measures Of Dispersion Flashcards
1
Q
Range
A
The arithmetic distance between the top number and bottom number. It is customary to add 1 bc the lowest value could be 1.5.
+ figures out how spread out the data is
- fails to take into account the distribution of numbers
2
Q
Standard Deviation
A
1 calculate the mean
2 subtract mean from each raw score
3 square mean scores
4 add them together
5 divide mean by -1
6 Square root
