Ask a Question

Which of the following is the most common problem with messy data?

← Prev Question Next Question →
+1 vote
287 views
in Data Science by (120k points)
Which of the following is the most common problem with messy data?

(a) Column headers are values

(b) Variables are stored in both rows and columns

(c) A single observational unit is stored in multiple tables

(d) All of the mentioned

The question was asked in my homework.

Question is taken from Tidy Data in section Getting Data of Data Science

1 Answer

+1 vote
by (700k points)
selected by
 
Best answer
Right answer is (d) All of the mentioned

To explain I would say: Real datasets can, and often do, violate the three precepts of tidy data in almost every way imaginable.

Related questions

+1 vote
1 answer
Point out the wrong statement.
asked Jul 19, 2021 in Data Science by regression (120k points)
+1 vote
1 answer
Point out the correct statement.
asked Jul 19, 2021 in Data Science by regression (120k points)
Welcome to TalkJarvis QnA, a question-answer community website for the people by the people. On TalkJarvis QnA you can ask your doubts, curiosity, questions and whatever going in your mind either related to studies or others. Experts and people from different fields will answer.

Most popular tags

biology – class 12 biology – class 11 construction & building materials chemistry – class 12 electronic devices & circuits network theory data structures & algorithms ii cell biology ic engine insurance finance money computational fluid dynamics engineering physics i discrete mathematics chemistry – class 11 aerodynamics casting-forming-welding i engineering mathematics operating system casting-forming-welding ii engineering drawing mysql engineering geology digital circuits wireless mobile energy management electrical measurements digital communications cyber security analytical instrumentation embedded systems electric drives cytogenetics computer fundamentals life sciences basic civil engineering advanced machining iot design of electrical machines physics – class 12 applied chemistry dairy engineering basic chemical engineering cloud computing microprocessor bioinformatics aircraft design aircraft maintenance software engineering drug biotechnology digital signal processing biochemistry data structures & algorithms i automotive engine design avionics engineering material & metallurgy energy engineering cognitive radio unix electrical machines biomedical instrumentation object oriented programming electromagnetic theory power electronics analog communications bioprocess engineering civil engineering drawing engineering metrology physics – class 11 mathematics – class 12 engineering chemistry i basic electrical engineering unit processes mongodb signals and systems cryptograph & network security hadoop mathematics – class 11 engineering physics ii html control systems engineering mechanics antennas analog circuits computer network java sql server javascript concrete technology chemical process calculation artificial intelligence design of steel structures c++ database management computer architecture engineering chemistry ii corrosion engineering chemical technology dc machines
Powered by TalkJarvis
...