30 дек. 2016 г. · If X and Y have zero mean, then E(Y−βX)2=Var(Y)−2βCov(X,Y)+β2Var(X)=Var(Y)−(Cov(X,Y))2Var(X)+(β√Var(X)−Cov(X,Y)√Var(X))2≥Var(Y)−(Cov(X,Y))2Var(X) ...

4 мая 2023 г. · When we plot a graph of xy against y, is the vertical intercept a defined value? My question is because I feel that the vertical intercept ...

21 нояб. 2014 г. · if you're asking how to plot x/y=y then just multiply both sides by y and you have yourself a parabola. – Jemmy. Commented Nov 21, 2014 at 15:33.

31 мар. 2014 г. · The word "versus" can mean "compared with," and it more frequently makes sense to compare a dependent value with its associated independent value.

23 окт. 2015 г. · The regression line of Y against X minimises the total squared distance of the Y COORDINATES to the y COORDINATES of the line, where as X against Y minimise ...

Hence, the Y-intercept of the line doesn't exist. But my teacher disagree, saying that the Y-intercept exist but I can't solve for f(x) when X=0 (Y=b when X=0 ...

7 сент. 2012 г. · The sentence Plot y versus x means that y is considered as a dependent variable, and x as an independent variable. So y goes on the vertical axis.

13 дек. 2011 г. · One quick way is that linear equations have a degree of one (or, technically, zero). So, the x variable can only be raised to the power of one, ...

8 июл. 2023 г. · Apparently there is a finite number of pairs of integers (x,y) which satisfy the inequality when b<1 and d>1. This can be seen by plotting y=bx ...

29 июн. 2024 г. · When we say y=|x|, we mean to say, y=+x,x>0. y=−x,x<0. This is called as a piecewise function, i.e., a function that is defined on sequence ...