data analyis central Flashcards
central tendency
1
Q
measures of central tendency
A
Measures of central tendency: a mathematical way to find
out the typical or average score from a data set. a set of quant result can be summarized to one number that represents a middle called an average
2
Q
3 types
A
mean
mode
median
3
Q
mean
A
Mean is calculated by adding all the scores in a data set and dividing them by the number of scores in the data
set.
4
Q
mode
A
most frequent
5
Q
medium
A
The median is the middle score of a data set when it is ranked in order (snallest to largest order).
if more than one middle ad then divide by 2
6
Q
anonmales
A
medium is NOT effected
mean is
mode is
7
Q
if no repeat values
A
all are the mode
