Which are characteristics of the Black Prairie region? Choose four correct answers. Several of Mississippi’s major cities are located there. Cattle and dairy farming are important to its economy. It is part of the Appalachian foothills. Its soil is not fertile and does not drain well. The plantation system was very successful there. It is home to several well-known rock and blues musicians.

Dr. robbins wants to know if there are different opinions regarding the value of public school education between native americans who have at least one relative who attended indian boarding school and native americans who have no family experience with indian boarding school. dr. robbins contacts 35 native american participants in each group. he wants each group to include younger as well as older adults, and a mix of male and female participants. he asks each person to complete a survey about their attitudes toward public education. the design of this study is: