The function T(a) = a’ models Kepler's Third Law. The period T (in Earth years) is the time it takes a planet to complete one orbit about the sun as a function of the planet's average distance from the sun, measured in astronomical units (AU). What do you think are some key features of the graph of T(a)? Use a graphing calculator to graph T(a) and examine its features. Then find the time it takes for Neptune, with an average distance from the sun of 30.06 AU, to complete its orbit of the sun

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.