Please select the appropriate answer for all 4 questions and then click the submit exam for grading button at the end of the page.

Question 1.What is clustering ? (a) Grouping of balls (b) Grouping of data (c) Grouping smaller sets of data which is similar (d) None of the above

Question 2. What is the output of a clustering algorithm ? (a) Raw data (b) Group of balls (c) Clusters of data (d) All of the above

Question 3. What is a cluster centroid ? (a) Mean of the values of all the points in the cluster (b) Average of the available data (c) Average of the number of balls (d) Any of the above

Question 4. What are the types into which clustering algorithms are categorized ? (a) Heirarchial methods (b) Nonheirarchial methods (c) Both (a) and (b) (d) None of the above