Question

Question 7 :- Primary data is
obtained by:
O personal interviews
o mailing questionnaires
O telephone interview
O All of the above​

Answer 1

Answer:

all of the above

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Answer 2

Explanation:

Data science is an inter-disciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from many structural and unstructured data. Data science is related to data mining, machine learning and big data.