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.

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

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

8328 results

Vasileios Fotopoulos

Super learner

0

2

Practice test - Question 2

In question 2 of the practice test, where I re-run the algorithm after I make the correction I specified in question...

Last answered: Oct 7th 2024

Super learner

0

1

Exam Solutions eigenvalues

In questions regarding eigenvalues. for matrix A[[6,7], [0,1]] I solved it using np.linalg.eig and got a completely...

Linear Algebra and Feature Selection

Last answered: Oct 9th 2024

Super learner

0

0

Comments about practice exam #3

Hi Viktor, I have some comments about the exercises in practice exam #3. Regarding question 2, at least in...

Data Preprocessing with NumPy

Enrique del Campo Estrada

0

0

Error and Doubt in Exam

Hello. I think i found an error in a question on the exam; when asking about the sample size for a one-tailed...

A/B Testing in Python

TULASI BHARATHI

0

0

Example for the course

The course is good! It would be nice if the example used for the course is related to a data science or an ML or a DL...

Project Management

Enrique del Campo Estrada

0

0

Doubt about A/B segmentation

Good morning,I have a question about how to perform segmentation in an A/B test to check if a new feature generates...

A/B Testing in Python

0

2

Thank you so much.

Thank you for the courses.These are absolutely wonderful.

Last answered: Oct 18th 2024

Shreyas Kulkarni

0

7

Could you please share course notes?

I have noticed this course doesn't have a course note, can you please share it?

Build Chat Applications with OpenAI and LangChain

Last answered: Oct 3rd 2024

1

0

Trying to use my two 20% discount from card collections

Hi, there. I had acquired two of these benefits from card collections, I was on the monthly plan. Now I am...

Super learner

0

3

2-D histogram: Density matrix values in their correct position.

Hi Viktor, you indicated in the lesson on Histograms in NumPy (part 2) that in the density array returned by the...

Data Preprocessing with NumPy

Last answered: Oct 15th 2024

Enrique del Campo Estrada

0

0

Why is the sample size measured in days?

Good morning,I have a question. When calculating the sample size for the continuous variable DAU (Daily Active...

A/B Testing in Python

Enrique del Campo Estrada

0

1

Resolved: Doubt about Minimun Detectable Error

Hello,In minute 0:15 of this lecture, Anastasia talks about "Minimum Detectable Error." Is this a confusion? Does she...

A/B Testing in Python

Last answered: Oct 1st 2024

0

0

Acess to the growth data tables

Hello, How can I get access to the front_sessions, front_visitors, student_info, student_purchases, and...

Growth Analysis with SQL, Python, and Tableau

0

1

Combinatorics Quiz Question #6

Why doesn't the denomenator have the following: (n-1)!p! Isn't that the correct denominator for this equation?

Last answered: Oct 2nd 2024

0

1

Slides/downloads/material

Is there nothing available for this course?

Machine Learning Deep Dive: Business Applications and Coding Walkthroughs

Last answered: Sep 27th 2024

1
...
8
...
13
14
15
16
17
...
286
...
556

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

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

11

9

Resolved: My comments on this course

Adetunji Fasiku

11

1

The Second Question's Confusing Ability

10

1

course question

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

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