Awebsite keeps track of its number of visitors in the days immediately after it
runs a radio advertisement. on the first day, it has n visitors. on the second day
it has half as many visitors as on the first day and on the third day, it has half a
many visitors as on the second day, the website has 14,000 visitors in all over
those three days, how many did it have each day?

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.