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Data Science Aptitude Assessment Test

This Data Science Aptitude Assessment Test evaluates candidates' proficiency in data manipulation and cleaning, mathematics and statistics, programming (debugging), machine learning, big data technologies, programming skills, and data visualization. It is designed for roles such as Machine Learning Engineer and Junior Data Analyst.

Proficiency Level
Beginner-Expert
Experience
0-8 years
Duration
30 mins
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Use Case

  • Assesses understanding of statistics, data cleaning, and visualization.
  • Evaluates programming and debugging skills in Python for data tasks.
  • Identifies proficiency in basic machine learning and big data concepts.
  • Helps select candidates with strong foundational data science abilities.

Skills Covered

Mathematics and Statistics
Programming Skills
Data Manipulation and Cleaning
Data Visualization
Machine Learning
Big Data Technologies
Programming (Debugging)

About

Data Science Aptitude Assessment Test

This Data Science Aptitude Assessment Test is designed to evaluate candidates' proficiency in key areas essential for data-driven roles. It covers data manipulation and cleaning, mathematics and statistics, programming (debugging), machine learning, big data technologies, programming skills, and data visualization. The test is tailored for roles such as Machine Learning Engineer and Junior Data Analyst, providing a comprehensive evaluation of candidates' abilities to handle data-centric tasks effectively. This assessment ensures that candidates possess the foundational skills necessary to excel in data science roles, making it an ideal tool for employers seeking to identify top talent in the field.

Target Audience

The assessment is ideal for evaluating candidates for roles such as Machine Learning Engineer and Junior Data Analyst. It is suitable for hiring managers, recruiters, and organizations looking to assess the foundational skills of candidates in data science-related positions.

Prerequisites
  • Basic understanding of data manipulation techniques
  • Familiarity with statistical concepts and methods
  • Experience with programming languages such as Python or R
  • Knowledge of machine learning algorithms and their applications
  • Understanding of big data technologies and tools
  • Ability to visualize data using tools like Tableau or Matplotlib
  • Problem-solving skills and logical reasoning abilities
Test Overview
Duration
30 mins
Questions
11
Passing Score
70%

Questions

Understanding Central Tendency Measures
Data Science
Data Science
Central Tendency
Statistics
What this question evaluates
This question assesses the candidate's understanding of measures of central tendency in data science, specifically comparing the advantages of using the mean over the median. It evaluates the ability to differentiate between the two measures and their implications in data analysis.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Python Module for Data Manipulation in Data Science
Python
Python
Modules
Data Science
DataFrame
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Evaluating Data Cleaning Understanding
Data Science
Data Science
Data Cleaning
Python
What this question evaluates
This question assesses the candidate's ability to handle missing values in a dataset using a data manipulation library in Python.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Data Visualization Techniques in Python
Data Visualization
Data Visualization
Data Science
Python
Continuous Variables
What this question evaluates
This question evaluates the candidate's knowledge of data visualization techniques in Python, specifically focusing on the visualization of the relationship between two continuous variables. It assesses the ability to select the most appropriate visualization method for a given scenario.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding Overfitting in Machine Learning
Machine Learning
Machine Learning
Overfitting
Supervised Learning
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Understanding Hadoop Ecosystem
Big Data
Big Data
Hadoop
Parallel Computing
What this question evaluates
No description provided
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Handling Missing Data in Data Science
Statistics
Statistics
Data Science
Imputation
What this question evaluates
This question assesses the candidate's knowledge of Python modules for data manipulation and analysis, specifically focusing on DataFrame objects.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Handling Missing Data in Data Science
Data Science
Data Science
Missing Data
Data Imputation
What this question evaluates
This question evaluates the candidate's knowledge of handling missing data values in a dataset in the context of data science. It assesses the understanding of techniques such as mean or median imputation, record removal, predictive modeling, and constant value replacement.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Handling Missing Data in a Dataset
Data Manipulation
Data Manipulation
Data Cleaning
Data Science
What this question evaluates
This question assesses the candidate's knowledge of data visualization techniques in Python, specifically focusing on the visualization of the relationship between two continuous variables. It evaluates the candidate's understanding of scatter plots and their relevance in displaying continuous data.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Enhancing Scatter Plot Visualization with Matplotlib
Data Visualization
Data Visualization
Python
Matplotlib
What this question evaluates
This question assesses the candidate's knowledge of handling missing data values in a dataset within the context of data science. It evaluates the understanding of common techniques such as mean or median imputation, record removal, predictive modeling, and constant value replacement.
Type:
Programming
Difficulty:
Medium
Time:
2 mins
Attempts:
100+
Success Rate:
70.01%
Fix the code to find sum of squares of all even numbers - 2
Array Manipulation
Array Manipulation
Debugging Skills
Function creation and usage
Logic building
Mathematical operations
What this question evaluates
This question is testing the candidate's skills in debugging and refining function logic in array manipulation and mathematical operations.
Type:
Programming
Difficulty:
Medium
Time:
15 mins
Attempts:
100+
Success Rate:
70.01%
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Dashboard mockup
Sofia Rossi
Candidate
Passed
85%
AI Summary
Skills Performance
Score
Mathematics and Statistics
87%
Programming Skills
80%
Data Manipulation and Cleaning
85%
Data Visualization
82%
Areas of Improvement
Review
Data Visualization
Practice
Programming Skills
Skill Assessment
Detailed evaluation of technical skills and problem-solving abilities.
AI Analysis
Machine learning-powered insights into candidate performance patterns.
Benchmarking
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Action Items
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Candidate Skills
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10 credits / mo + 1 seat
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Add-on seat at $8 /seat
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Skill fit candidates
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Standard compliance, security and audits
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Standard support from WeCP Team
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60 credits / yr
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Skill fit candidates
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Conduct face to face interviews
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ATS Integrations
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Standard compliance, security and audits
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Standard support from WeCP Team
Premium
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500 credits / yr
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Add-on credit at $8 /credit
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Comprehensive Assessment Capabilities
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Advance Skill Analytics
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Learning & Development Integration
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Employee Friendly User Experience
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Retention-Focused Features
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Advance compliance, security and audits
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Proactive support from WeCP Team
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Access to WeCP AI Copilot to save cost, time and improve outcomes
Enterprise
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