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DASCA Senior Data Scientist Sample Questions:

1. Which of the following is a "thinking like a data scientist" decomposition process?

A) Business Stakeholder
B) Strategic Nouns
C) Both B and C
D) Business Initiative
E) All of the above

2. Semi-structured data does NOT include:

A) Database system
B) Schema-full data
C) Scientific data
D) File systems

3. Which of the following is a Python library for fitting Bayesian networks to real data?

A) MCMC
B) MyLib
C) SciLib
D) SCIMC
E) PyMC

4. Which of the following is correct?

A) The central object in Pandas is called a DataFrame
B) DataFrame is similar to SQL tables or R data frames
C) Both A and B
D) A data frame is a table with rows and columns
E) All of the above

5. Which of the following is correct about customer lifetime value (CLTV)?
i. Most organizations determine the current customer lifetime value (CLTV) based on historic sales over past
12 to 18 months
ii. The goal of the CLTV score is to help marketing and store personnel to determine the "value" of a customer

A) Both i and ii
B) Only ii
C) Only i

Solutions: