Ordinary kriging overcomes which of the following problems that can occur with simple kriging? a. the true global mean is rarely known b. all of the other choices c. the local mean within the search neighborhood may vary over the region of interest d. the assumption of first-order stationarity may not be strictly valid

Cost and benefit in economic example

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

Which quotation reflects the perspective of most of georgia legislatures in 1956 regarding the georgia state flag? "georgia's flag should be updated to have a more modern look and design." "georgia's flag should be a symbol of integration and equal rights." "georgia's flag does not need to be changed; it represents peace and prosperity." "georgia's flag should be a symbol of our resistance to federal integration laws."