(a) Find the Riemann sum for
f(x) = 4
sin(x), 0 ≤ x ≤
3π/2,
with six terms, taking the sample points to be right endpoints.
(Round your answers to six decimal places.)
R6 =
(b) Repeat part (a) with midpoints as the sample points.
M6 =
If m ≤ f(x) ≤ M for
a ≤ x ≤ b, where m is the
absolute minimum and M is the absolute maximum of
f on the interval [a, b], then
m(b...
Let f(x) = sin(πx).
• x0 = 1,x1 = 1.25, and x2 = 1.6 are given. Construct Newton’s
DividedDifference polynomial of degree at most two.
• x0 = 1,x1 = 1.25,x2 = 1.6 and x3 = 2 are given. Construct
Newton’s Divided-Difference polynomial of degree at most three.
For the given function f(x) = cos(x), let x0 = 0, x1 = 0.25, and
x2 = 0.5. Construct interpolation polynomials of degree at most one
and at most two to approximate f(0.15)
Find the probability P(0<X1<1/3 ,
0<X2<1/3) where X1, X2 have
the joint pdf
f(x1, x2) = 4x1(1-x2) ,
0<x1<1
0<x2<1
0,
otherwise
(ii) For the same joint pdf, calculate
E(X1X2) and E(X1 +
X2)
(iii) Calculate
Var(X1X2)
Let X1 and X2 have the joint pdf
f(x1,x2) = 2 0<x1<x2<1; 0. elsewhere
(a) Find the conditional densities (pdf) of X1|X2 = x2 and X2|X1
= x1.
(b) Find the conditional expectation and variance of X1|X2 = x2 and
X2|X1 = x1.
(c) Compare the probabilities P(0 < X1 < 1/2|X2 = 3/4) and
P(0 < X1 < 1/2).
(d) Suppose that Y = E(X2|X1). Verify that E(Y ) = E(X2), and that
var(Y ) ≤ var(X2).