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Let m be the number of training instances. What is the summation of cost function multiplied by to get the gradient descent?

Let m be the number of training instances. What is the summation of cost function multiplied by to get the gradient descent? Correct Answer 1/m

Since the summation is taken of all the cost functions starting from training instance 1 to training instance m, an average needs to be taken to get the actual cost function. So, it is multiplied by 1/m.

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