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
Filter courses
  • 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
Filter questions by
  • Answered
  • Resolved
Clear all
Order by
  • Posted on
  • Last answered
  • Answers
  • Popularity
Filter courses
  • 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
Filter questions by
  • Answered
  • Resolved
Clear all
8328 results
Shivek Devgan
0
1
Functions - Incorrect output
After running the lesson example, getting an incorrect avg. salary for 11300. I am getting 63761.28 instead...
SQL
Last answered: Mar 20th 2023
572 views
Nacereddine SEMMAR
0
1
Resolved: The benefits of variables
Why did you use a variable in the title measure where you could have used an IF statement ? This is what I did...
Power BI
Last answered: Mar 19th 2023
936 views
Nick Konovalchuk
1
9
Resolved: Possible bug with latest contract filtering
Let's look at the dept_employee subquery from the answer query. I've changed it a bit, moving from_date condition to...
Advanced SQL
Last answered: Dec 3rd 2023
581 views
Shafeeq ur Rehman Gazdhar
1
0
Temporary email account
Hi i am on the way of success need your favour to set a temporary email account , my email account is...
Power BI
1077 views
Nick Konovalchuk
0
1
Resolved: s.from_date = s1.from_date position in the query
Why s.from_date = s1.from_date is in WHERE and not in JOIN ON?
Advanced SQL
Last answered: Mar 27th 2023
597 views
Mayank Mittal
0
0
Issue while inspecting the HTML
Rotten Tomato website made some changes to their <div> tag by adding some <em> tags to the first two...
Web Scraping and API Fundamentals in Python
611 views
Julián Elizondo
Super learner
This user is a Super Learner. To become a Super Learner, you need to reach Level 8.
1
0
How many got the joke?
Since not many students here have English as their mother language, I wonder how many got the STD joke 😆
Data Preprocessing with NumPy
571 views
Yasaman Matin
0
1
sql subqueries nested in select and from
There is this video under "SQL subqueries nested in select and from" which makes me feel so confused and lost. I...
SQL
Last answered: Mar 20th 2023
661 views
Donald Trenholm
0
7
Resolved: Getting error code 1140 even after trying the fixes.
Still gtting error code 1140 even after applying the fixes from another persons question. I made sure to restart...
SQL
Last answered: Nov 10th 2023
1503 views
Kamran Mumtaz
0
1
Resolved: Getting Error while making HLOOKUP dynamic
I typed the below formula to make HLOOKUP dynamic. =HLOOKUP($H4,$B$3:$F$7,MATCH(J$3,$B$3:$B$7,0),FALSE) and found...
Introduction to Excel
Last answered: Mar 20th 2023
1101 views
Solo Jtc
0
1
X has 290 features, but LinearRegression is expecting 869 features as input.
HP_model=lm.LinearRegression()for i in range(4,34,1):    x=df1[col[0]].copy()   ...
Machine Learning in Python
Last answered: Mar 20th 2023
2659 views
AINA BINTI AZAZI
0
3
Unknown gender column in the field
I have been following your tutorials one by one, but why don't I get the same result as you do? For someone who...
SQL
Last answered: Jul 26th 2023
698 views
Nandor Nagy
3
0
use IN {} instead of repeated dax lines
If having the same code to many items, we can use IN {} instead of repeated dax...
Power BI
1118 views
Sailesh Krishnan
0
1
How to find P-value?
How the p value is calculated as 0.304 in the video, i am trying to calculate using the t table and cant able to get...
Statistics
Last answered: Mar 18th 2023
1240 views
Lizeth Alexandra Estevez Joya
0
1
the dim_Product.xlsx
Hi,  Where can I find the dim_Product.xlsx? I have been looking for it because I would like to practise the...
Power BI
Last answered: Mar 18th 2023
961 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