describing variation Flashcards
1
Q
what are the 3 primary measures of central tendencies?
A
mean, median and mode
2
Q
what are the 3 primary measure of dispersion?
A
range, standard deviation and percentile
3
Q
all data normally has what?
A
dispersion
4
Q
what is the law of large numbers?
A
large number of data points approximates the true mean and distribution of the population
5
Q
what is the myth of small numbers?
A
small data sets can be very misleading
