Question
Which of the following is an effective method for
handling inconsistent data in a merged dataset?Solution
A uniform schema ensures consistency in data structure, field names, and data types across merged datasets. This step is essential when combining data from multiple sources, as differing formats can lead to analytical errors. For instance, if two datasets store date fields in different formats (e.g., MM/DD/YYYY and DD-MM-YYYY), creating a uniform schema resolves these discrepancies. Standardization through a schema improves data usability, reduces errors, and facilitates smooth integration. It is a proactive approach to achieving consistency in datasets. Why Other Options Are Incorrect: • A: Deleting records leads to data loss and should be a last resort. • B: Normalization standardizes data within a range but does not address format inconsistencies. • D: Replacing with null values creates gaps and reduces dataset completeness. • E: Ignoring inconsistencies compromises the accuracy and validity of analysis.
Consider the given paragraph and decide which of the given assumptions in the options is implicit in the paragraph.
The school, which used to ...
Consider the following series of letters and numbers.
ZBN#$MAL@23l8nS$59nhfpWn$#l 12EhaI
What comes at the 5th position to the right of ...
Statement:
A. Some fish are birds.
B. No cat is bird.
Conclusion:
I. No bird is cat.
II. Some birds are fish.
If a mirror is placed on the shaded line, which of the following options is the correct image of the given figure?
Select the figure from among the given that will come in place of the question mark (?) and logically complete the series
In a code language ‘SHE WON GOLD MEDAL’ is written as 'JRP VMT QMNZ KPZFN' then how will you write ‘DOME’ in this language?
Read the given statement and conclusions carefully. Decide which of the given conclusion/s is/are true based on the given statement.
Statement: ...
Three statements are given, followed by three conclusions numbered I, II and III.
Assuming the statements to be true, even if they seem to be at ...
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance...
Select the option figure which is embedded in the given figure (Rotation is NOT allowed).
