4 imprtance of morbidity ?(4marks)
4 uses of mortility masurements? (4marks)
charsarctics of specfic objectives? (4marks)
features of merging and emmerging ? (4marks)
list five type of sampling ? and discuss two of them ?(4marks)
dfine epidemic? (4marks)
list types of epidemic? (4marks)
list brand hill criteria? (4marks)