One quarter of steve's baseball cards are from his dad's collection. another 0.2 are from his uncle , and 0.5 are from his brother. the rest are from steve's cousin. thirty of the cards from his cousin are national league players; the other half are american league. how many cards are in his collection?

In part i, the independent variable, the one that is intentionally manipulated, in part ii, the independent variable changes the dependent variable, the one you measure the response in, is the same for parts i and ii. for both parts of the lab, the dependent variable

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

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.