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i)sample- this is part or segment of population.
ii)variable- refers to a particular characteristic of interest, usually denoted by capital letters.
iii)population- is the totality or entire group of cases under study.
iv)discrete variables- these are variables which take whole numbers.
v)continuous variable- is a variable which assume any value between two points.
Hildah Wafula answered the question on April 1, 2019 at 13:06