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Data cleaning is the process dedicated to removing inaccuracies, errors, and inconsistencies within a dataset to enhance its reliability. This step is crucial in preparing the data for accurate analysis by addressing issues like missing values, outliers, or erroneous entries. A clean dataset ensures that subsequent analyses and models yield trustworthy results, enabling sound decision-making. Without rigorous data cleaning, insights derived from the data could be flawed, potentially leading to misguided actions. Data cleaning is thus foundational to the integrity of the analysis process. The other options are incorrect because: • Data Modeling involves creating frameworks for data relationships, not directly addressing data quality. • Data Collection pertains to gathering raw data but not its correction. • Data Interpretation is the step of making sense of the analyzed data rather than improving its quality. • Data Presentation involves displaying results, assuming that the dataset has already been cleaned.
Train A running at speed of 162 km/hr crosses a platform having twice the length of train in 22 sec. Train B whose length is 760m crosses same platform ...
A 400 m long train crosses a platform twice its length in 2 min. Find the speed of the train.
A train 525 meters long running at a speed of 103 kmph overtakes another train which is 425 meters long running at a speed of 73 kmph in the same direc...
450 metre long train ‘A’ is running with a speed of 99 km/hr. Train ‘B’ which is 555 metre long is running with a speed of 90 km/h in opposite d...
A train crosses a pilar in 20 seconds and a platform of length 300 metres in 25 seconds,then what will the 120% of the length of the train.
Train ‘A’ travelling with a speed of 72 km/h can cross a pole in 18 seconds. If the length of train ‘B’ is 60% less than that of train ‘A’ a...
Two trains, whose respective lengths are 120 metres and 180 metres, cross each other in 15 seconds when they are moving in opposite directions and in 5...
A person sees a train passing over 5 km long bridge. The length of the train is half that of bridge if the train clears the bridge in 6 mins. What is th...
100 metre long train ‘A’ can cross a platform of length 50 metres in 20 seconds. If the speed of train ‘B’ is 6 m/s more than that of train ‘A...
A train after travelling 150 km meets with an accident and then proceeds at of its former speed and arrives at its destination 8 hrs late. Had the accid...