Once a new centroid (representative point) is selected for each cluster, k-means reassigns every data point to the cluster represented by the centroid that is nearest to it. show that after reassigning clusters, the sum of s2 over all clusters is less than or equal to s2 before the reassignment

If you could answer these your a life saver

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll