The common stock of the downtowne should return 23 percent in a boom, 16 percent in a normal economy, and lose 32 percent in a recession. the probabilities of a boom, normal economy, and recession are 5 percent, 90 percent, and 5 percent, respectively. what is the variance of the returns on this stock? a..012453 b..012914 c..011345 d..011663 e..012691

If i have one apple and give you the apple, how many apples do i have?

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.

Which statement justifies why angle ebc measures 90?