Data Science Basics All MCQ part-2

Que.Point out the correct statement.
a. Raw data is original source of data
b. Preprocessed data is original source of data
c. Raw data is the data obtained after processing steps
d. None of the mentioned
Que.Which of the following is performed by Data Scientist?
a. Define the question
b. Create reproducible code
c. Challenge results
d. All of the mentioned
Que.Which of the following is the most important language for Data Science?
a. Java
b. Ruby
c. R
d. None of the mentioned
Que.Point out the wrong statement.
a. Merging concerns combining datasets on the same observations to produce a result with more variables
b. Data visualization is the organization of information according to preset specifications
c. Subsetting can be used to select and exclude variables and observations
d. All of the mentioned
Que.Which of the following approach should be used to ask Data Analysis question?
a. Find only one solution for particular problem
b. Find out the question which is to be answered
c. Find out answer from dataset without asking question
d. None of the mentioned
Que.Which of the following is characteristic of Processed Data?
a. Data is not ready for analysis
b. All steps should be noted
c. Hard to use for data analysis
d. None of the mentioned
Que.Raw data should be processed only one time.
a. True
b. False
c. May be True or False
d. Can’t say
Que.Point out the correct statement.
a. Least square is an estimation tool
b. Least square problems falls in to three categories
c. Compound least square is one of the category of least square
d. None of the mentioned
Que.How many principles of analytical graphs exist?
a. 3
b. 4
c. 6
d. None of the mentioned
Que.Which of the following is not a step in data analysis?
a. Obtain the data
b. Clean the data
c. EDA
d. None of the mentioned

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