Start learning 50% faster. Sign in now
Standardizing categorical entries to a single representation ensures consistency by consolidating multiple formats of the same entity into one standardized label. For example, consolidating "USA," "U.S.A," "United States," and "US" into one uniform label, like "United States," ensures that all data entries are interpreted consistently. This process is essential in data cleaning, as inconsistencies in categorical data can lead to inaccurate analysis, skewed results, and duplications in reporting. A uniform categorical format enables reliable grouping, sorting, and filtering for analysis. The other options are incorrect because: • Option 1 (Filtering duplicates) removes identical rows but doesn’t address inconsistency in a single field. • Option 2 (Using normalization) only applies to numeric scaling, not categorical consistency. • Option 3 (Applying data transformation) would encode inconsistencies rather than correct them. • Option 5 (Converting to uppercase) helps with case sensitivity but does not fully standardize variations.
Kindly Study the following questions carefully and choose the right answer.
In plants, the carbohydrates which are not used immediately are sto...
When carbon dioxide gas is passed through lime water, a white precipitate is formed, which dissolves on
passing excess of carbon dioxide. The...
Two waves, each of amplitude 1.5 mm and frequency 10 Hz, are travelling in opposite direction with a speed of 20 mm/s. The distance in mm between adjace...
What is the common name of calcium hydroxide?
Which of the following is a primary pollutant?
Which of the following gas usually causes explosions in coal-mines?
Which of the following is NOT a method to improve crop yields in India?
Which of the following compounds form nitrites with nitrous acid?
An object is placed on the axis of a concave mirror at its focus (F). The image formed is: