A. This is an inferential study. A study using descriptive statistics creates graphs, calculations or tables to describe the population. A study using inferential statistics forms estimates, conclusions and predictions about a population based on a sample of data taken from the population under study.
B. In this example, the study used the opinion of U.S adults in relation to evolution, to establish its theory that support for Darwinism increases with the level of education. The population is the entire human population and the sample is U.S adults.
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Answer:
The solid outer shell of the earth, with an average thickness of 30–35 km in continental regions and 5 km beneath the oceans, forming the upper part of the lithosphere and lying immediately above the mantle is called crust.