Machine Learning Foundations, End Term

September 2025 term, 21 Dec 2025, Set 1

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Question 1

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Consider the function defined as . For what values of is convex

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Consider the function defined as . For what values of is convex Consider Which of the following is/are true Consider An ML team wants to predict whether an email is spam or not by using some classification models. Therefore, the team defines three binary features where, = Presence of suspicious keywords (1 = present, 0 = absent)• = Whether the sender is unknown (1 = unknown, 0 = known)• = Whether the email contains a link (1 = yes, 0 = no)• The team collects the following dataset from previously classified emails: The model makes a prediction using the rule : and Compute the average loss on this dataset. Enter your answer correct to one decimal place. An ML team wants to predict whether an email is spam or not by using some classification models. Therefore, the team d An ML team wants to predict whether an email is spam or not by using some classification models. Therefore, the team d