GENERAL REGRESSION PROBLEM We are given n sampling times x1, . ,xn and n corresponding targets y1, . ,yn. For each i , we define a radial function: Ф_i (x) =
The regression model is defined as the function y(x, w) =∑ is a vector of weights to be determined.
We assume that the targets are related to the model by an additive noise e_i as follows:
yi = y(xi ,ω)+ei .
The noise samples are assumed to be independent and identically distributed as N (0,σ^2).

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

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answer: c.  

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mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.

3100

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