365 Data Science Q&A Hub

Receive support from your instructors, build positive interactions with fellow data science students, and have fun while advancing in data science. Please be respectful and patient while interacting with others in the 365 Data Science Q&A hub. For more details on the code of etiquette, you should abide by, read our Community Guidelines.

Ask a question
By course
  • Introduction to Tableau
  • The Complete Data Visualization Course with Python, R, Tableau, and Excel
  • Introduction to R Programming
  • Data Preprocessing with NumPy
  • Introduction to Data and Data Science
  • Data Cleaning and Preprocessing with pandas
  • Introduction to Business Analytics
  • Data Analysis with Excel Pivot Tables
  • SQL
  • Credit Risk Modeling in Python
  • Python Programmer Bootcamp
  • SQL + Tableau + Python
  • Introduction to Jupyter
  • Statistics
  • Mathematics
  • Introduction to Excel
  • Probability
  • Starting a Career in Data Science: Project Portfolio, Resume, and Interview Process
  • SQL + Tableau
  • Time Series Analysis with Python
  • Power BI
  • Product Management for AI & Data Science
  • Git and GitHub
  • Deep Learning with TensorFlow 2
  • Customer Analytics in Python
  • Web Scraping and API Fundamentals in Python
  • Introduction to Python
  • Python for Finance
  • Machine Learning in Python
  • Advanced Microsoft Excel
  • Convolutional Neural Networks with TensorFlow in Python
  • Data Strategy
  • Fashion Analytics with Tableau
  • Dates and Times in Python
  • SQL for Data Science Interviews
  • Data Literacy
  • AI Applications for Business Success
  • Linear Algebra and Feature Selection
  • Machine Learning with Naïve Bayes
  • Machine Learning in Excel
  • Machine Learning with Support Vector Machines
  • A/B Testing in Python
  • Machine Learning with Decision Trees and Random Forests
  • Machine Learning with K-Nearest Neighbors
  • Machine Learning with Ridge and Lasso Regression
  • Data-Driven Business Growth
  • Corporate Strategy
  • Marketing Strategy
  • Negotiation
  • Management
  • Persuasion and Influence
  • Excel for Project Management
  • Agile and Scrum Project Management
  • Project Management
  • Blockchain for Business
  • How to Think Like a Data Scientist to Become One
  • Power Query and Data Modeling
  • Introduction to DAX
  • Building Business Reports Using Power BI
  • The Machine Learning Process A-Z
  • Working with Text Files in Python
  • Intermediate Python Programming
  • Advanced SQL
  • The Machine Learning Algorithms A-Z
  • Customer Churn Analysis with SQL and Tableau
  • Machine Learning Deep Dive: Business Applications and Coding Walkthroughs
  • Customer Engagement Analysis with SQL and Tableau
  • Advanced SQL for Data Engineering
  • Communication and Presentation Skills for Analysts and Managers
  • Intro to ChatGPT and Generative AI
  • Data Analysis in PowerBI with ChatGPT
  • Mastering Key Performance Indicators (KPIs)
  • Sign-Up Flow Optimization Analysis with SQL and Tableau
  • Python for Social Media Analytics
  • Intro to NLP for AI
  • Data Analysis with ChatGPT
  • ChatGPT for Data Science
  • Intro to LLMs
  • Growth Analysis with SQL, Python, and Tableau
  • Intro to Data Engineering
  • Statistical Tests in Sales and Marketing
  • Build Chat Applications with OpenAI and LangChain
  • Introduction to Vector Databases with Pinecone
  • Intro to Revenue Analytics
  • Intro to AI
  • Speech Recognition with Python
  • LLM Engineering in Practice with Streamlit and OpenAI
  • Building Data Pipelines with Apache Airflow
By status
  • Answered
  • Resolved
Clear all
Order by
  • Date posted
  • Date last answered
  • Number of answers
  • Number of votes
By course
  • Introduction to Tableau
  • The Complete Data Visualization Course with Python, R, Tableau, and Excel
  • Introduction to R Programming
  • Data Preprocessing with NumPy
  • Introduction to Data and Data Science
  • Data Cleaning and Preprocessing with pandas
  • Introduction to Business Analytics
  • Data Analysis with Excel Pivot Tables
  • SQL
  • Credit Risk Modeling in Python
  • Python Programmer Bootcamp
  • SQL + Tableau + Python
  • Introduction to Jupyter
  • Statistics
  • Mathematics
  • Introduction to Excel
  • Probability
  • Starting a Career in Data Science: Project Portfolio, Resume, and Interview Process
  • SQL + Tableau
  • Time Series Analysis with Python
  • Power BI
  • Product Management for AI & Data Science
  • Git and GitHub
  • Deep Learning with TensorFlow 2
  • Customer Analytics in Python
  • Web Scraping and API Fundamentals in Python
  • Introduction to Python
  • Python for Finance
  • Machine Learning in Python
  • Advanced Microsoft Excel
  • Convolutional Neural Networks with TensorFlow in Python
  • Data Strategy
  • Fashion Analytics with Tableau
  • Dates and Times in Python
  • SQL for Data Science Interviews
  • Data Literacy
  • AI Applications for Business Success
  • Linear Algebra and Feature Selection
  • Machine Learning with Naïve Bayes
  • Machine Learning in Excel
  • Machine Learning with Support Vector Machines
  • A/B Testing in Python
  • Machine Learning with Decision Trees and Random Forests
  • Machine Learning with K-Nearest Neighbors
  • Machine Learning with Ridge and Lasso Regression
  • Data-Driven Business Growth
  • Corporate Strategy
  • Marketing Strategy
  • Negotiation
  • Management
  • Persuasion and Influence
  • Excel for Project Management
  • Agile and Scrum Project Management
  • Project Management
  • Blockchain for Business
  • How to Think Like a Data Scientist to Become One
  • Power Query and Data Modeling
  • Introduction to DAX
  • Building Business Reports Using Power BI
  • The Machine Learning Process A-Z
  • Working with Text Files in Python
  • Intermediate Python Programming
  • Advanced SQL
  • The Machine Learning Algorithms A-Z
  • Customer Churn Analysis with SQL and Tableau
  • Machine Learning Deep Dive: Business Applications and Coding Walkthroughs
  • Customer Engagement Analysis with SQL and Tableau
  • Advanced SQL for Data Engineering
  • Communication and Presentation Skills for Analysts and Managers
  • Intro to ChatGPT and Generative AI
  • Data Analysis in PowerBI with ChatGPT
  • Mastering Key Performance Indicators (KPIs)
  • Sign-Up Flow Optimization Analysis with SQL and Tableau
  • Python for Social Media Analytics
  • Intro to NLP for AI
  • Data Analysis with ChatGPT
  • ChatGPT for Data Science
  • Intro to LLMs
  • Growth Analysis with SQL, Python, and Tableau
  • Intro to Data Engineering
  • Statistical Tests in Sales and Marketing
  • Build Chat Applications with OpenAI and LangChain
  • Introduction to Vector Databases with Pinecone
  • Intro to Revenue Analytics
  • Intro to AI
  • Speech Recognition with Python
  • LLM Engineering in Practice with Streamlit and OpenAI
  • Building Data Pipelines with Apache Airflow
By status
  • Answered
  • Resolved
Clear all
8437 results
mahesh lande
0
1
more operation in pythn videoes not run ploe to learn our best program
more operation in pythn videoes not  run ploe to learn our best program pl open it
Introduction to Python
Last answered: Mar 15th 2024
893 views
Kuaguim Richard
0
1
the right factor of correlation
Why did you say that the highest correlation is between basement and guestroom? it is only 0,37 while there are...
Machine Learning in Excel
Last answered: Mar 13th 2024
657 views
Thomas Okanya James
0
3
Error Message while trying to rename column
I noticed that if I try to change the "text before delimiter" column to upper case before renaming it to "User Name"...
Power BI
Last answered: Mar 12th 2024
1047 views
Muhammad Kumail
0
1
Data Science Course Subscription
How to get all subscriptions material free as I can't pay that?
Introduction to Data and Data Science
Last answered: Mar 13th 2024
514 views
Nana Yaa
0
1
last group by incomplete
in the last group by where the code reads "group by de2.emp_no,d.dept_name" should it not include s2.salary? so...
Advanced SQL
Last answered: Mar 15th 2024
399 views
Goodnness Abija
0
1
not in vs not like
what is the difference between not like and not in
SQL
Last answered: Mar 12th 2024
440 views
Saleha Yoshida
0
0
Where does the random walk data comes from? 
I understand that we can find spx index value from bloomberg but how does this randon walk data initially came from
Time Series Analysis with Python
452 views
Keyur Kadia
1
1
Can you provide description?
Can you provide description for all three table and their columns name and what they store and what that value...
Customer Churn Analysis with SQL and Tableau
Last answered: Mar 21st 2024
450 views
Kishore
1
0
Doubts in probability
1. What does the instructor mentioning @4:19. 2. How the Age of the players is a poisson distribution the hystogram...
Probability
412 views
Siddhant Gupta
0
1
Regarding logit code implementation
I am applying the code, but it shows somewhat different results - 
Machine Learning in Python
Last answered: Mar 11th 2024
556 views
Jonathan Kolawole
Super learner
This user is a Super Learner. To become a Super Learner, you need to reach Level 8.
2
0
QUARTER FUNCTION IN POWER BI
I just want to pass this across to whom it may concern, there is now a Quarter function in Power BI. You are welcome.
Power BI
686 views
Ahmed yasser
0
1
Inquiry on Teaching Methodology
Is there training or task after any lecture
Last answered: Mar 15th 2024
353 views
Jonathan Kolawole
Super learner
This user is a Super Learner. To become a Super Learner, you need to reach Level 8.
1
0
Practice Exam 2: Question 2
The answer chosen for this question seems to be incorrect. Can I get a clarification? Here is the question: Trying...
Data Preprocessing with NumPy
435 views
Daniel Torrejon
Super learner
This user is a Super Learner. To become a Super Learner, you need to reach Level 8.
1
2
Resolved: CTR test comparison
Why do you directly compare the before and after without computing the mean by day?This is the actual code:res =...
A/B Testing in Python
Last answered: Mar 8th 2024
546 views
David Rodrigo Contla Cortes
0
1
Suggestion - SQL Results
Please do add the hint of how many rows we should be getting in our answers to all exercises in order for us to see...
SQL
Last answered: Apr 1st 2024
405 views

popular questions

Omar R. Valencia García
28
4
The line reg.predict(1740) does not work anymore
Rafael Rodrigues de Siqueira
23
6
The ROLLBACK not working according to step-by-step class
E E
13
1
I didn't quite understand the nuance from 3:48 till the end
Toluwase Olukayode
12
4
not showing as completed even though I have complete the course. Please help me fix it
Gabriel de Jesus Patiño Pino
12
0
The answer to the third question is wrong (Practical exam 2: Discrete Distributions)
Davide Sanchioni
11
3
Sixth question of the practice exam
Christine Li
11
9
Resolved: My comments on this course
Adetunji Fasiku
11
1
The Second Question's Confusing Ability
Anower Hossain
10
1
course question
Ali Safaei
9
1
Using z statistics instead of t statistics
Mohamed Abdelazim Mohamed Elsrougy
9
2
Resolved: Downloading Video Materials
Abdulmalik Alkhamis
9
1
This is inconsistent with the quiz
Luiz
9
1
Suggestion: change the robot and arrows analogy
Abdelrahman El-kattan
8
5
the conclusion?
Zachary Roblyer
8
3
Resolved: Feedback for practice exam