Introduction to data science

1. Which library in Python is commonly used for data manipulation and analysis in Data Science?

Pandas
Matplotlib
Scikit-Learn
TensorFlow

Detailed SolutionWhich library in Python is commonly used for data manipulation and analysis in Data Science?

2. Which of the following language should be replaced with the question mark in the below figure?

Java
PHP
COBOL
None of the mentioned

Detailed SolutionWhich of the following language should be replaced with the question mark in the below figure?

3. Which of the following step is performed by data scientist after acquiring the data?

Data Cleansing
Data Integration
Data Replication
All of the mentioned

Detailed SolutionWhich of the following step is performed by data scientist after acquiring the data?

4. Which of the following is a common technique used to handle imbalanced datasets in classification problems?

Upsampling
Downsampling
Feature Engineering
Data Wrangling

Detailed SolutionWhich of the following is a common technique used to handle imbalanced datasets in classification problems?

5. Which of the following is NOT a common data visualization tool or library used in Data Science?

Tableau
Seaborn
Power BI
Excel

Detailed SolutionWhich of the following is NOT a common data visualization tool or library used in Data Science?

6. Which of the following allows you to find the relationship you didn’t about?

Inferential
Exploratory
Causal
None of the mentioned

Detailed SolutionWhich of the following allows you to find the relationship you didn’t about?

7. Which of the following is a key characteristic of a hacker?

Afraid to say they don't know the answer
Willing to find answers on their own
Not Willing to find answers on their own
All of the mentioned

Detailed SolutionWhich of the following is a key characteristic of a hacker?

8. Which of the following term is appropriate to the below figure?

Large Data
Big Data
Dark Data
None of the mentioned

Detailed SolutionWhich of the following term is appropriate to the below figure?

9. How many principles of analytical graphs exist?

3
4
6
None of the mentioned

Detailed SolutionHow many principles of analytical graphs exist?

10. Which of the following approach should be used if you can’t fix the variable?

randomize it
non stratify it
generalize it
none of the mentioned

Detailed SolutionWhich of the following approach should be used if you can’t fix the variable?

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