Margie Marx
2021-12-14
Answered

What is the meaning of Sxx and Sxy in simple linear regression? I know the formula but what is the meaning of those formulas?

You can still ask an expert for help

asked 2021-05-14

Use the given graph off over the interval (0, 6) to find the following.

a) The open intervals on whichfis increasing. (Enter your answer using interval notation.)

b) The open intervals on whichfis decreasing. (Enter your answer using interval notation.)

c) The open intervals on whichfis concave upward. (Enter your answer using interval notation.)

d) The open intervals on whichfis concave downward. (Enter your answer using interval notation.)

e) The coordinates of the point of inflection.$(x,\text{}y)=$

a) The open intervals on whichfis increasing. (Enter your answer using interval notation.)

b) The open intervals on whichfis decreasing. (Enter your answer using interval notation.)

c) The open intervals on whichfis concave upward. (Enter your answer using interval notation.)

d) The open intervals on whichfis concave downward. (Enter your answer using interval notation.)

e) The coordinates of the point of inflection.

asked 2021-12-04

Find parametric equation of the line passing through point $(4,\text{}2)$ parallel to vector

$\overrightarrow{v}=-\hat{i}+5\hat{j}$

asked 2021-12-10

Evaluate the vector-valued function at each given value of t. $r\left(t\right)=(2t+1)i+{t}^{2}j-\sqrt{t}+2k$

(a)$r\left(0\right)\left(b\right)r\{-2)\left(c\right)r(c-1)$

(d)$r(1+\mathrm{\u25b3}t)-r\left(1\right)$

(a)

(d)

asked 2021-11-26

Represent the line segment from P(-2, -3, 8), Q(5, 1, -2) by a vector-valued function and by a set of parametric
equations.

asked 2021-11-29

Eliminate the parameter $\theta$ in the following parametric equations

$x=a\mathrm{tan}\theta \text{}y=b\mathrm{sec}\theta$

asked 2021-12-07

Consider the following planes:

$5x-4y+z=1$

$4x+y-5z=5$

a) Find parametric equations for the line of intersection of the planes. (Use the parameter t.)

b) Find the angle between the planes. (Round your answer to one decimal place.)

a) Find parametric equations for the line of intersection of the planes. (Use the parameter t.)

b) Find the angle between the planes. (Round your answer to one decimal place.)

asked 2021-11-25

Sketch the curve represented by the vector-valued function $r\left(t\right)=(t+1)i+(3t-1)j+2tk$ and give the orientation of the curve.