(a) Make an exponential model that shows the U.s. direct investment abroad A, in billions of dollars, t years after 1980. A(e) = by = 13.5e0.1124 13.5 x 1.1124 (b) From 1980, how long did it take (in years) for U.S. investments abroad to double? (Round your answer to two decimal places.) years (c) According to the model, how long would it take (in years) from 2010 for investments abroad to double the level present in 2010? (Round your answer to two decimal places.) years

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear re…

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.