Choose the correct answer.

A-What element is central to statistics and is a key element of the data scientists toolkit?

1-The Central Theorem

2-The process of extrapolating centricity measures (mean, median, mode)

3-The process of drawing reliable conclusions from incomplete data

4-All of the above

B- Which framework is generally considered the most popular?

1-CRISP-DM

2-SEMMA

3-KDD

4-STAR

C-What is the purpose of Cross-Industry Standard Process for Data Mining (CRISP-DM), Sample, Explore, Modify, Model and Assess (SEMMA) and Knowledge Discovery in Databases (KDD)?

1-To organize data

2-To pose questions

3-To research questions

4-All of the above

D-The following is a summary of a completed study: Half of 40 volunteers suffering from insomnia were randomly assigned to a special no-desserts diet while the others continued consuming desserts as usual. Those who ate no desserts showed the most improvement. Identify the type of the study.

1-Observational study

2-Experimental study

3-Categorical study

4-Sample population

E- Which of the following is performed by a Data Scientist?

1-Supporting a decision-making process

2-Gathering business requirements for the technical implementation

3-Pulling data sources together, creates data pipelines

4- None of the above