Four buses carrying 156156 high school students arrive to Montreal. The buses carry, respectively, 3434, 4141, 3232, and 4949 students. One of the studetns is randomly selected. Let XX denote the number of students that were on the bus carrying this randomly selected student. One of the 44 bus drivers is also randomly selected. Let YY denote the number of students on his bus. Compute the expectations of XX and Y

The federal reserve controls certain interest rates in the united states. investors often try to speculate as to whether the federal reserve will raise or lower rates and by how much. suppose a company conducts extensive interviews with financial analysts, and as a result, predicts that "thefed" will increase rates by an average of 0.25 percentage points every six months for the forseeable future. which type of equation could be used to model the predicted interest rates over the next several years, assuming no other significant changes? a) a linear equation b) a quadratic equation c) a polynomial equation d) an exponential equation