please solve part 4 and 5 ( data mining subject)

4. Distinguish between noise and outliers. Be sure to consider the following questions. (a) Is noise ever interesting or desirable? Outliers? (b) Can noise objects be outliers? (c) Are noise objects always outliers? (d) Are outliers always noise objects? (e) Can noise make a typical value into an unusual one, or vice versa? 5. You are given a set of m objects that is divided into K groups, where the ith group is of size mi. If the goal is to obtain a sample of size n