Data Preprocessing Quiz

Data Preprocessing Quiz

University

10 Qs

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Data Preprocessing Quiz

Data Preprocessing Quiz

Assessment

Quiz

Computers

University

Practice Problem

Easy

Created by

NOR (PMJ)

Used 2+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal of data preprocessing?

To remove all data points

To enhance data quality for better analysis

To increase data redundancy

To randomly select features

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which technique is commonly used to handle missing data?

Deleting the entire dataset

Filling missing values with the mean or median

Ignoring the issue

Adding random values

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is feature selection in machine learning?

Removing all attributes from the dataset

Choosing relevant variables to improve model performance

Duplicating existing features

Adding random variables

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of data cleaning?

To introduce new errors

To standardize and correct inconsistencies in the data

To remove all categorical variables

To duplicate the dataset for backup

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is NOT a step in data preprocessing?

Data integration

Data redundancy

Data transformation

Data cleaning

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main purpose of data integration?

Combining data from multiple sources into a unified format

Removing duplicate data

Randomly splitting data

Encrypting data for security

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is feature engineering?

The process of creating new meaningful features from raw data

The removal of all missing values

The deletion of unnecessary columns

The process of merging datasets

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