Mathematics, 06.04.2021 05:20, hjoe523
g Let Θ ∼ Uniform[0, 2π]. Let X = cos Θ, Y = sin Θ. (a) Show that X and Y are uncorrelated random variables (b) Show that X and Y are not independent random variables by showing that X2 and Y 2 are not uncorrelated random variables. (c) Show that X and Y are not independent random variables by showing that {− √ 1 2 < X < √ 1 2 }, {− √ 1 2 < Y < √ 1 2 } are not independent events. Remark: (b) and (c) are indirect ways of showing that X and Y are not independent.
Answers: 2
Mathematics, 21.06.2019 18:50, hartmaaj95
The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103
Answers: 3
Mathematics, 21.06.2019 21:00, millie54
Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?
Answers: 2
g Let Θ ∼ Uniform[0, 2π]. Let X = cos Θ, Y = sin Θ. (a) Show that X and Y are uncorrelated random va...
French, 30.10.2019 06:31
Mathematics, 30.10.2019 06:31
Mathematics, 30.10.2019 06:31