When each data value in one sample is matched with a corresponding data value in another sample, the samples are known as
a. corresponding samples
b. matched samples
c. independent samples
d. None of these alternatives is correct.

Thats where they was ported and the fields that noone really knew much about needed tended, so they put slaves out there do free work and huge profits and so on the north decided to hold its own and was more different way of survival did not have same climate conditions to afford protecting slaves from winter so expenses be diff from south