2. Let f(x) ≥ 0 on [1, 2] and suppose that f is integrable on
[1,...
2. Let f(x) ≥ 0 on [1, 2] and suppose that f is integrable on
[1, 2] with R 2 1 f(x)dx = 2 3 . Prove that f(x 2 ) is integrable
on [1, √ 2] and √ 2 6 ≤ Z √ 2 1 f(x 2 )dx ≤ 1 3 .
Let f(x, y) be a function such that f(0, 0) = 1, f(0, 1) = 2,
f(1, 0) = 3, f(1, 1) = 5, f(2, 0) = 5, f(2, 1) = 10. Determine the
Lagrange interpolation F(x, y) that interpolates the above data.
Use Lagrangian bi-variate interpolation to solve this and also show
the working steps.
Let the joint p.d.f f(x,y) = 1 for 0 <= x <= 2, 0 <= y
<= 1, 2*y <= x. (And 0 otherwise)
Let the random variable W = X + Y.
Without knowing the p.d.f of W, what interval of w values holds
at least 60% of the probability?
1 Let f(x, y) = 4xy, 0 < x < 1, 0 < y < 1, zero
elsewhere, be the joint probability density function(pdf) of X and
Y . Find P(0 < X < 1/2 , 1/4 < Y < 1) , P(X = Y ), and
P(X < Y ). Notice that P(X = Y ) would be the volume under the
surface f(x, y) = 4xy and above the line segment 0 < x = y <
1...
Given f(x) = 1 x 2 − 1 , f 0 (x) = −2x (x 2 − 1)2 and f 00(x) =
2(3x 2 + 1) (x 2 − 1)3 . (a) [2 marks] Find the x-intercept and the
y-intercept of f, if any. (b) [3 marks] Find the horizontal and
vertical asymptotes for the graph of y = f(x). (c) [4 marks]
Determine the intervals where f is increasing, decreasing, and find
the point(s) of relative extrema, if any....
G1.
Let f(x, y) = 1 for 0 < x < 1 and x < y < (x + 1);
and 0 otherwise. Find the correlation coefficient for this X and Y
.
(Hint: the answer is p (1/2) = 0.7071. See if you know all of
the steps needed to get there.)
Let f(x) = b(x+1), x = 0, 1, 2, 3 be the probability mass
function (pmf) of a random variable X, where b is constant.
A. Find the value of b
B. Find the mean μ
C. Find the variance σ^2
True and False (No need to solve).
1. Every bounded continuous function is
integrable.
2. f(x)=|x| is not integrable in [-1, 1] because the function f
is not differentiable at x=0.
3. You can always use a bisection algorithm to find a root of a
continuous function.
4. Bisection algorithm is based on the fact that If f is a
continuous function and f(x1) and f(x2) have
opposite signs, then the function f has a root in the interval
(x1,...