Q&A Hub

Get support from your instructors, build positive interactions with fellow data science students, and have fun while advancing in data science. Read our Community Guidelines.

Ask a question
qa.jpg

Q&A Hub

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
  • Select all
Filter questions by
  • Select all
  • 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
  • Select all
Filter questions by
  • Select all
  • Answered
  • Resolved
Clear all
kfir ben galil
0
1
charts presentetion from python
Hi, when one wishes to present  a dashboard displaying charts made using python (or R), can he some how upload...
The Complete Data Visualization Course with Python, R, Tableau, and Excel
Last answered: 6 days ago
39 views
Bare Udusegbe
0
2
Resolved: Is it appropriate to compare conversion vs dropoff rates?
I noticed the instructor was comparing the dropoff rates of customers who visited the site directly vs the conversion...
Data-Driven Business Growth
Last answered: 9 days ago
43 views
Bakhtimurod
0
1
Hi, there is something wrong when I tried the exercise as the same as Martin did.
Introduction to Python
Last answered: 6 days ago
49 views
Akpo ogheneraro
3
2
Resolved: BUSINESS SPECIALIZATION
Hello Everyone, I just want to know why the business speicialization Module 5 is locked, and what does it take to get...
Last answered: 7 days ago
82 views
stefano sartori
0
1
scatter plot DATASET
Where can I find the assignment Dataset like te scatterplot alumn Homework?thanks
The Complete Data Visualization Course with Python, R, Tableau, and Excel
Last answered: 6 days ago
49 views
Akinboyewa David
0
1
How to use my coin
Hi, Can I use my coins to pay for an upgrade?
Last answered: 7 days ago
43 views
Mani Ahmadniaroudsari
0
0
Practice Exam 1 - Question 5
I believe the answer you assigned to question 5 is wrong... when you sort the number array shouldn't you choose...
Data Cleaning and Preprocessing with pandas
34 views
Mani Ahmadniaroudsari
0
1
Pandas new version format
pandas suggest the following formatting for line 6 of the code:
Data Cleaning and Preprocessing with pandas
Last answered: 10 days ago
44 views
Shardul Dhage
0
1
Resolved: Error while encrypting the code.
Dear Sir/Madam,                            I...
Python Programmer Bootcamp
Last answered: 11 days ago
45 views
Siththarththan Arunthavabalan
0
3
Logit regression statsmodels
hi, How many variable  I can use in stats models logit regression? it shows error if I add more than certain...
Machine Learning in Python
Last answered: 13 hours ago
42 views
Carl Angelo Catchola
0
1
Scope of v_avg_salary
Hello, Just to clarify: We 'call' a user-defined function by using the SELECT statement, followed by the function...
SQL
Last answered: 10 days ago
37 views
Mani Ahmadniaroudsari
0
1
DataFrame - Product D without productPrice
Dear Martin The code you provided at line 8 , shows no error for me:
Data Cleaning and Preprocessing with pandas
Last answered: 10 days ago
38 views
Alessandro Imbrìaco
2
1
Explanations to questions 15 and 29
Good morning. I cannot find a Q&A section under final exams (I think it should be added), so I decided to ask...
SQL
Last answered: 10 days ago
61 views
Uday Majumder
0
0
pooled variance is weighted variance where (nx-1) is weightage of first variance?
The pooled variance is an estimate of the common variance. It is a weighted average of the sample variances for each...
Statistics
34 views
Axelle Rolain
0
3
When will you update the data cleaning and data preprocessing part ?
Hello, This part still need to be update because the video is a good introduction but it doesn't show how to do...
Data Cleaning and Preprocessing with pandas
Last answered: 19 hours ago
38 views

popular questions

Omar R. Valencia García
15
2
The line reg.predict(1740) does not work anymore
Gabriel de Jesus Patiño Pino
11
0
The answer to the third question is wrong (Practical exam 2: Discrete Distributions)
Abdulmalik Alkhamis
9
1
This is inconsistent with the quiz
365 Team
Instructor
7
0
How to use the Q&A HUB
Adetunji Fasiku
7
0
The Second Question's Confusing Ability
Davide Sanchioni
6
1
Sixth question of the practice exam
Rafael Rodrigues de Siqueira
6
1
The ROLLBACK not working according to step-by-step class
Ali Safaei
6
0
Using z statistics instead of t statistics
Patarida K.
6
0
Please explain Minutes 2:42 equations
sithari
5
3
I think this course is missing something
Radovan Jevtic
5
3
Resolved: Download Resources for course data strategy
Kanva Bhatia
5
1
Not getting the same results
Andrzej McFarland
5
2
Can the April 15 date be extended? Pretty please?
Sivarajan Sivakumar
4
3
The GitHub jobs API has deprecated?
Le Van Cuong
4
5
Date in this lesson don't have in the data set at the last lesson!