Given X ~ N(1,22 ): a. P(X2− 2X < 3) =? b. E(X2 − 2X) =?
Question 3 1p What is the integrating factor for xy-3y=x^2? x^(-3) -3/x O e^(-3/) O e^(1/2x^2)
2x f(x) = ex+ f'(x) = (3x + 2) ex+3 B f'(x) = (x2 + 2x) e*+2x-1 С f'(x) = ex®+2x f'(x) = €3x+2
Find f'(x) and f''(x) for the following: f(x) = e^cos(2x^3) b) f(x) = 20 x^3 + 12 x^2 - 8x sin (7x)
E(X) = 3 λ, E(Y) = 2 λ, and W = k(2X + 3Y), then what is k if W is an unbiased estimator for λ?
- 2x Find the values of x at which the function f(x)=e + 2x has a relative maximum or minimum point. O A. minimum at x = 0 OB 0.69 maximum at x = 2 O C. There are no relative maximum/minimum points. OD maximum at x- O E. none of these Click to select your answer
Find the expected value of the following a) E(e2X) If X is standard normal b) E(e-2X) If X is Poisson(3) c) E(e-X) ) If X is Gamma(3, 5)
Results for this submission Entered Answer Preview X*[e^(2x)] 2e2z (8/3)*(x^3)+C 2 223 + c At least one of the answers above is NOT correct. 1 of the questions remains unanswered. (1 point) A first order linear equation in the form y' + P(x)y = f(x) can be solved by finding an integrating factor (2) = (1) Given the equation zy' + (1 + 2x) y = 8xe -2- find y(x) = xe^(2x) (2) Then find an explicit general solution with...
cewise Functions e function, evaluate lim f(x). 2 1-2x²+x+3 f(x) = { 2x2 – 3x + 3 (-3x - 2 if if xs1 1<x< 6 if x26 below:
e dx x ² - 2x+2 or