levels of measurement

Question 1

nominal data

Answer 1

form of categories - discrete

does not enable sensitive analysis

central tendency - mode
dispersion - n/a

Question 2

ordinal data

Answer 2

ranking form - no equal intervals

lacks precision as based on subjective opinions

central tendency - median
dispersion - range

Question 3

interval data

Answer 3

based on numerical scales which include equal units of precisely defined size

central tendency - mean
dispersion - standard deviation