Descriptive statistics Flashcards
1
Q
Measures of central tendency
A
Average value in set of data
2
Q
Mean
A
Add all them up then divide the amount there are
3
Q
What are the strengths & limitations of mean’s?
A
- Most representative data takes all scores into account
- can be destroyed be extreme values
4
Q
Median
A
Middle score
5
Q
Mode
A
Most frequent
6
Q
What are strengths& limitations of median?
A
- unaffected by extreme scores
- less sensitive than the mean bc not all scores used in calculation
7
Q
What are strengths & limitations of the mode?
A
- easy to calculate
- not representative of data as a whole
8
Q
Measure of dispersion
A
Measure of spread in set of data
9
Q
What are the strengths& limitations of the range?
A
- easy to calculate
- not representative only takes into account 2 extreme values
10
Q
Standard deviation
A
Shows to what extent the values in a data set deviate from the mean
11
Q
What are the strengths& limitations of standard deviation?
A
- more representative takes al scores into account
- effected by extreme scores
12
Q
Range
A
Subtract largest number to smallest
