In simple random sampling (SRS), we want to grab a subset of our larger data set in which each record…
Filtering serves as an abstract pattern for some of the other patterns. Filtering simply evaluates each record separately and decides,…
A count or summation can tell you a lot about particular fields of data, or your data as a whole.…
Inverted index pattern is used to generate an index from a data set to allow for faster searches or data…
A standard deviation shows how much variation exists in the data from the average, thus requiring the average to be…
Problem to Solve : Given a list of employees with there department and salary find the average salary in each…
Numerical Summarizations is a map reduce pattern which can be used to find minimum, maximum, average, median, and standard deviation…