Data Interview Qs - Active users on a messaging application
Active users on a messaging application
Data Analysis Python Pandas Data Manipulation External Dataset
Here is a table containing information from a P2P messaging application. The table contains send/receive message data for the application's users. The structure is as follows:
Table name: user_messaging
date |
sender_id (#id of the message sender) |
receiver_id (#id of the message receiver) |
Question: Using Python, calculate what fraction of senders sent messages to at least 9 unique people on March 1, 2018.
//Click here to view this problem in an interactive Colab (Jupyter) notebook.
Want the solutions? Upgrade to premium to access detailed solutions to each problem (including this one).
Was this email forwarded to you? You can join our list here to receive questions
Unsubscribe
Older messages
Pricing a coin flip
Friday, March 19, 2021
Data Interview Qs Pricing a coin flip Statistics Probability Theory Suppose a casino has created a new game, determined via coin toss. If the coin is tails, the individual is paid $1, and if the coin
Checking whether array elements can be made equal
Wednesday, March 17, 2021
Data Interview Qs Checking whether array elements can be made equal Python Data Structures Arrays Given an array a, write a function to feed in the array elements and check whether they can all be made
Shoe prices
Monday, March 15, 2021
Data Interview Qs Shoe prices SQL Database Querying Update Function Suppose you are given a SQL table containing the brands of shoes (field name: brand) as well as the shoe price (field name: price).
Filtering strings in Pandas dataframes
Saturday, March 13, 2021
Data Interview Qs Filtering strings in Pandas dataframes Data Analysis Python Pandas Data Manipulation Given the following dataframe, write code using Python (Pandas) to return the rows that contain
One way Anova
Wednesday, March 10, 2021
Data Interview Qs One way Anova Statistics ANOVA Test Give an example of when you would want to use a One Way ANOVA test. Walk through the example, your reasoning for choosing a One Way ANOVA, and the
You Might Also Like
[Virtual talk] How to remove the biggest blocker to production AI/ML
Monday, May 20, 2024
ML teams are being asked to power every customer experience and interaction with AI/ML. The pressure to go faster is high, but the reality is that the complex data engineering to get the right data to
What to expect from Microsoft Build 2024
Monday, May 20, 2024
The Morning After It's Monday, May 20, 2024. Normally, Microsoft's Build is a straightforward (often dry) showcase of the company's software and hardware developments, with a dash of on-
Import AI 373: Guaranteed safety; West VS East AI attitudes; MMLU-Pro
Monday, May 20, 2024
…As the money and stakes get higher, things will get crazier… ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏
Cyber Criminals Exploit GitHub and FileZilla to Deliver Cocktail Malware
Monday, May 20, 2024
THN Daily Updates Newsletter cover Webinar - Navigating the SMB Threat Landscape: Key Insights from Huntress' Threat Report Analyzing the Post-Qakbot Era and Emerging Threats with Cybersecurity
Architecture Weekly #180 - 20th May 2024
Monday, May 20, 2024
We started with an invitation to discuss Conway's Law. Then, we discussed recent Cloud provider mishaps. Well, one AWS mishap on the bill for a DDoSed S3 bucket and a nightmare from Google Cloud
Retiring!
Monday, May 20, 2024
Moving to a different Newsletter ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏ ͏
SRE Weekly Issue #425
Monday, May 20, 2024
View on sreweekly.com Welcome to a special re-send of SRE Weekly Issue #425! For those of you getting this for a second time, my apologies. I attempted to change to a new email vendor, but they
SRE Weekly Issue #425
Monday, May 20, 2024
View on sreweekly.com A message from our sponsor, FireHydrant: FireHydrant is now AI-powered for faster, smarter incidents! Power up your incidents with auto-generated real-time summaries,
🤖 Will AI Gadgets Replace Our Smartphones? — 4 Ways to Use Excel in Daily Life
Sunday, May 19, 2024
Also: How to Declutter Your Google Search Results, and More! How-To Geek Logo May 19, 2024 📩 Get expert reviews, the hottest deals, how-to's, breaking news, and more delivered directly to your
Daily Coding Problem: Problem #1446 [Medium]
Sunday, May 19, 2024
Daily Coding Problem Good morning! Here's your coding interview problem for today. This problem was asked by Google. Given a set of closed intervals, find the smallest set of numbers that covers