Question

Suppose you have m = 28m=28 training examples with n = 4n=4 features (excluding the additional all-ones feature for the intercept term, which you should add). The normal equation is \theta = (X^TX)^{-1}X^Tyθ=(X T
X) −1
X T
y. For the given values of mm and nn, what are the dimensions of \thetaθ, XX, and yy in this equation?
1 point
XX is 28\times528×5, yy is 28\times528×5, \thetaθ is 5\times55×5 XX is 28\times428×4, yy is 28\times128×1, \thetaθ is 4\times44×4 XX is 28\times528×5, yy is 28\times128×1, \thetaθ is 5\times15×1 XX is 28\times428×4, yy is 28\times128×1, \thetaθ is4\times14×1

Answer 1

Answer:

Explanation:

28