Attribut... a1 a2 a3 a4 a1 1 -0.109 0.872 0.818 a2 -0.109 1 -0.421 -0.357 a3 0.872 -0.421 1 0.963 a4 0.818 -0.357 0.963 1 What operator in RapidMiner was used to produce this output? k-Means Clustering Normalize Correlation Matrix o o Create Association Rules All of the following are differences between XLOOKUP and VLOOKUP in Excel, EXCEPT: XLOOKUP does not require its two cell ranges to be columns VLOOKUP requires a column number XLOOKUP cannot look up numeric values XLOOKUP assumes that we are looking for an exact match by default