__________________ are used to approximate the corresponding population values, or parameters.

In less developed countries, modern farm methods such as damming waterways to provide irrigation __________

a. improve the health of all in the area by allowing more grains to be grown b. create wealth that improves the community's living conditions c. often create environmental change that leads to disease d. improve health by supplying clean water

Efforts have been made by government employees and their associations to set ethical standards and enforce ethical behavior

Indicate whether the statement is true or false.