Descriptive statistics(2) Qualitative data
Descriptive statistics (2) Qualitative data 1
Another classification numerical variable categorical variable binary variable/ dichotomous polytomous variable multinomial Ordinal(or ranked data
2 Another Classification numerical variable categorical variable binary variable/ dichotomous polytomous variable multinomial Ordinal (or ranked data)
Descriptive statistics for categorical data Relative number and application tabular and graphic methods
3 Descriptive statistics for categorical data • Relative number and application • tabular and graphic methods
numerical method -Relative number Rate Proportion Ratio
4 numerical method -Relative number • Rate • Proportion • Ratio
Rate In contrast to the static nature of proportions rates are aimed at measuring the occurrences of events during or after a certain time period (1)Changes (2) Measures of morbidity and mortality
Rate • In contrast to the static nature of proportions, rates are aimed at measuring the occurrences of events during or after a certain time period. • (1) Changes • (2) Measures of Morbidity and Mortality 5