How could we spot anomalies in a data set having only four variables, for instance, Age, Gender, Place of residence, and Daily expenses of individuals? Bar Diagram (Gender, Place of residence), Histogram (Age, Daily expenses of individuals) O Frequency (Gender, Place of residence), Box-Plot (Age, Daily expenses of individuals) Frequency (Gender, Place of residence), Stem-and-Leaf (Age, Daily expenses of O individuals) Frequency (Gender, Place of residence), Bar Diagram (Age, Daily expenses of O individuals)