Data Science Jobs
7.84K subscribers
217 photos
1 video
42 files
715 links
Join this channel to get job & internship updates related to data science, machine learning data engineering, artificial intelligence & data analytics fields.
Download Telegram
๐Ÿญ๐Ÿฌ๐Ÿฌ๐Ÿฌ+ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฒ๐—ฑ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐—ฏ๐˜† ๐—œ๐—ป๐—ณ๐—ผ๐˜€๐˜†๐˜€ โ€“ ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป, ๐—š๐—ฟ๐—ผ๐˜„, ๐—ฆ๐˜‚๐—ฐ๐—ฐ๐—ฒ๐—ฒ๐—ฑ!๐Ÿ˜

๐Ÿš€ Looking to upgrade your skills without spending a rupee?๐Ÿ’ฐ

Hereโ€™s your golden opportunity to unlock 1,000+ certified online courses across technology, business, communication, leadership, soft skills, and much more โ€” all absolutely FREE on Infosys Springboard!๐Ÿ”ฅ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/43UcmQ7

Save this blog, sign up, and start your upskilling journey today!โœ…๏ธ
Forwarded from Data Analyst Jobs
Truecaller is hiring!
Position: Data Science & Analytics
Qualification: Bachelorโ€™s/ Masterโ€™s Degree
Salary: 5 - 15 LPA (Expected)
Experienc๏ปฟe: Freshers/ Experienced
Location: India

๐Ÿ“ŒApply Now: https://www.truecaller.com/careers/jobs/6909917

๐Ÿ‘‰ WhatsApp Channel: https://whatsapp.com/channel/0029VaI5CV93AzNUiZ5Tt226

๐Ÿ‘‰ Telegram Channel: https://t.me/addlist/4q2PYC0pH_VjZDk5

All the best! ๐Ÿ‘๐Ÿ‘
โค1
๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ: ๐—ง๐—ต๐—ฒ ๐—•๐—ฒ๐˜€๐˜ ๐—ฆ๐˜๐—ฎ๐—ฟ๐˜๐—ถ๐—ป๐—ด ๐—ฃ๐—ผ๐—ถ๐—ป๐˜ ๐—ณ๐—ผ๐—ฟ ๐—ง๐—ฒ๐—ฐ๐—ต & ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—•๐—ฒ๐—ด๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ๐˜€๐Ÿ˜

๐Ÿš€ Want to break into tech or data analytics but donโ€™t know how to start?๐Ÿ“Œโœจ๏ธ

Python is the #1 most in-demand programming language, and Scalerโ€™s free Python for Beginners course is a game-changer for absolute beginners๐Ÿ“Šโœ”๏ธ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/45TroYX

No coding background needed!โœ…๏ธ
โค1
๐Ÿญ๐Ÿฌ๐Ÿฌ% ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—ง๐—ฒ๐—ฐ๐—ต ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€๐Ÿ˜

From data science and AI to web development and cloud computing, checkout Top 5 Websites for Free Tech Certification Courses in 2025

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/4e76jMX

Enroll For FREE & Get Certified!โœ…๏ธ
โค1
Forwarded from Data Analyst Jobs
Uber hiring Data Scientist

Apply link: https://www.uber.com/global/en/careers/list/141654

๐Ÿ‘‰ WhatsApp Channel: https://whatsapp.com/channel/0029VaI5CV93AzNUiZ5Tt226

๐Ÿ‘‰ Telegram Channel: https://t.me/addlist/4q2PYC0pH_VjZDk5

All the best! ๐Ÿ‘๐Ÿ‘
โค1
๐€๐ฆ๐š๐ณ๐จ๐ง ๐…๐‘๐„๐„ ๐‚๐ž๐ซ๐ญ๐ข๐Ÿ๐ข๐œ๐š๐ญ๐ข๐จ๐ง ๐‚๐จ๐ฎ๐ซ๐ฌ๐ž๐ฌ ๐Ÿ˜

Learn AI for free with Amazon's incredible courses!

These courses are perfect to upskill in AI and kickstart your journey in this revolutionary field.

๐‹๐ข๐ง๐ค ๐Ÿ‘‡:-

https://bit.ly/3CUBpZw

Donโ€™t miss outโ€”enroll today and unlock new career opportunities! ๐Ÿ’ป๐Ÿ“ˆ
This media is not supported in your browser
VIEW IN TELEGRAM
 ๐Ÿค–T22 - The best-in-class telegram group bot!

Stop juggling bots: T22 is Rose x GroupHelp x Safeguard ๐Ÿ‘‡๐Ÿ‘‡

๐Ÿ” Verification & Captcha
๐Ÿ›ก Advanced Moderation Tools
๐Ÿ“ˆ Leveling System
๐Ÿ’ฌ Smart Welcome Flows
๐Ÿฆ Twitter Raids
๐Ÿง  Mini-App Dashboard
๐Ÿ“ฆ Rose Config Importer

Discover T22 ๐Ÿ†“
By MEE6 Creator
โค3
If you want to Excel in Data Science and become an expert, master these essential concepts:

Core Data Science Skills:

โ€ข Python for Data Science โ€“ Pandas, NumPy, Matplotlib, Seaborn
โ€ข SQL for Data Extraction โ€“ SELECT, JOIN, GROUP BY, CTEs, Window Functions
โ€ข Data Cleaning & Preprocessing โ€“ Handling missing data, outliers, duplicates
โ€ข Exploratory Data Analysis (EDA) โ€“ Visualizing data trends

Machine Learning (ML):

โ€ข Supervised Learning โ€“ Linear Regression, Decision Trees, Random Forest
โ€ข Unsupervised Learning โ€“ Clustering, PCA, Anomaly Detection
โ€ข Model Evaluation โ€“ Cross-validation, Confusion Matrix, ROC-AUC
โ€ข Hyperparameter Tuning โ€“ Grid Search, Random Search

Deep Learning (DL):

โ€ข Neural Networks โ€“ TensorFlow, PyTorch, Keras
โ€ข CNNs & RNNs โ€“ Image & sequential data processing
โ€ข Transformers & LLMs โ€“ GPT, BERT, Stable Diffusion

Big Data & Cloud Computing:

โ€ข Hadoop & Spark โ€“ Handling large datasets
โ€ข AWS, GCP, Azure โ€“ Cloud-based data science solutions
โ€ข MLOps โ€“ Deploy models using Flask, FastAPI, Docker

Statistics & Mathematics for Data Science:

โ€ข Probability & Hypothesis Testing โ€“ P-values, T-tests, Chi-square
โ€ข Linear Algebra & Calculus โ€“ Matrices, Vectors, Derivatives
โ€ข Time Series Analysis โ€“ ARIMA, Prophet, LSTMs

Real-World Applications:

โ€ข Recommendation Systems โ€“ Personalized AI suggestions
โ€ข NLP (Natural Language Processing) โ€“ Sentiment Analysis, Chatbots
โ€ข AI-Powered Business Insights โ€“ Data-driven decision-making

Like this post if you need a complete tutorial on essential data science topics! ๐Ÿ‘โค๏ธ

Join our WhatsApp channel: https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D
โค2
Forwarded from Remote Jobs
Data Science & Analytics Job Opportunities -

Actively job hunting? Here's a curated list of open roles โ€” from entry-level to senior positions:

๐Ÿ’ผ Open Roles:

1๏ธโƒฃ Data Analyst โ€“ Newell Brands (๐Ÿ“Atlanta, GA)
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 1-3 year experience)
๐Ÿ”— Apply here : https://lnkd.in/ewEjFqYa

2๏ธโƒฃ Revenue Operational Analyst โ€“ Field Nation (๐Ÿ“Remote)
๐Ÿง‘๐Ÿ’ผ Entry-Mid-level (โ€” around 2-4 years experience)
๐Ÿ”— Apply here : https://lnkd.in/eMk6MhNP

3๏ธโƒฃ Data Analyst โ€“ DTE Energy (๐Ÿ“Detroit, MI)
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 3+ years experience)
๐Ÿ”— Apply here : https://lnkd.in/emEzNZkv

4๏ธโƒฃ Data Analytics โ€“ City of Philadelphia (๐Ÿ“Philadelphia, PA)
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 3-5 year experience)
๐Ÿ”— Apply here : https://lnkd.in/eicgiwsB

5๏ธโƒฃ BI Engineer โ€“ Jackson Health System (๐Ÿ“Miami, FL)
๐Ÿง‘๐Ÿ’ผ Entry-Mid-level (โ€” around 3 year experience)
๐Ÿ”— Apply here : https://lnkd.in/e4NXkYgQ

6๏ธโƒฃ Analyst โ€“ ArchWell Health (๐Ÿ“Nashville, TN)
๐Ÿง‘๐Ÿ’ผ Entry-Level (โ€” around 1-2 year experience)
๐Ÿ”— Apply here : https://lnkd.in/eh_aUHmh

7๏ธโƒฃ Data scientist I โ€“ Harris County Sheriff's Office (๐Ÿ“Des Moines, IA )
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 1 year experience)
๐Ÿ”— Apply here : https://lnkd.in/eWc8GWZd

8๏ธโƒฃ Financial Analyst II โ€“ Dignity Health (๐Ÿ“Chandler, AZ)
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 1 year experience)
๐Ÿ”— Apply here : https://lnkd.in/eWvXEJ-U

9๏ธโƒฃ BI Analyst โ€“ Integrated Services for Behavioral Health (๐Ÿ“McArthur, OH)
๐Ÿง‘๐Ÿ’ผ Mid-level (โ€” around 3-4 years experience)
๐Ÿ”— Apply here : https://lnkd.in/eWrd5uTQ

๐Ÿ”Ÿ Data Engineer โ€“ Costco Wholesale (๐Ÿ“Seattle, WA)
๐Ÿง‘๐Ÿ’ผ Entry-level (โ€” around 2 years experience)
๐Ÿ”— Apply here : https://lnkd.in/eyrggt3u
โค2๐Ÿ‘1
Forwarded from Python for Data Analysts
๐—™๐—ฟ๐—ฒ๐—ฒ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฅ๐—ผ๐—ฎ๐—ฑ๐—บ๐—ฎ๐—ฝ ๐—ณ๐—ผ๐—ฟ ๐—•๐—ฒ๐—ด๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ๐˜€: ๐Ÿฑ ๐—ฆ๐˜๐—ฒ๐—ฝ๐˜€ ๐˜๐—ผ ๐—ฆ๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—๐—ผ๐˜‚๐—ฟ๐—ป๐—ฒ๐˜†๐Ÿ˜

Want to break into Data Science but donโ€™t know where to begin?๐Ÿ‘จโ€๐Ÿ’ป๐Ÿ“Œ

Youโ€™re not alone. Data Science is one of the most in-demand fields today, but with so many courses online, it can feel overwhelming.๐Ÿ’ซ๐Ÿ“ฒ

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3SU5FJ0

No prior experience needed!โœ…๏ธ
โค3
๐Ÿฑ ๐—–๐—ผ๐—ฑ๐—ถ๐—ป๐—ด ๐—–๐—ต๐—ฎ๐—น๐—น๐—ฒ๐—ป๐—ด๐—ฒ๐˜€ ๐—ง๐—ต๐—ฎ๐˜ ๐—”๐—ฐ๐˜๐˜‚๐—ฎ๐—น๐—น๐˜† ๐— ๐—ฎ๐˜๐˜๐—ฒ๐—ฟ ๐—™๐—ผ๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐˜๐—ถ๐˜€๐˜๐˜€ ๐Ÿ’ป

You donโ€™t need to be a LeetCode grandmaster.
But data science interviews still test your problem-solving mindsetโ€”and these 5 types of challenges are the ones that actually matter.

Hereโ€™s what to focus on (with examples) ๐Ÿ‘‡

๐Ÿ”น 1. String Manipulation (Common in Data Cleaning)

โœ… Parse messy columns (e.g., split โ€œName_Age_Cityโ€)
โœ… Regex to extract phone numbers, emails, URLs
โœ… Remove stopwords or HTML tags in text data

Example: Clean up a scraped dataset from LinkedIn bias

๐Ÿ”น 2. GroupBy and Aggregation with Pandas

โœ… Group sales data by product/region
โœ… Calculate avg, sum, count using .groupby()
โœ… Handle missing values smartly

Example: โ€œWhatโ€™s the top-selling product in each region?โ€

๐Ÿ”น 3. SQL Join + Window Functions

โœ… INNER JOIN, LEFT JOIN to merge tables
โœ… ROW_NUMBER(), RANK(), LEAD(), LAG() for trends
โœ… Use CTEs to break complex queries

Example: โ€œGet 2nd highest salary in each departmentโ€

๐Ÿ”น 4. Data Structures: Lists, Dicts, Sets in Python

โœ… Use dictionaries to map, filter, and count
โœ… Remove duplicates with sets
โœ… List comprehensions for clean solutions

Example: โ€œCount frequency of hashtags in tweetsโ€

๐Ÿ”น 5. Basic Algorithms (Not DP or Graphs)

โœ… Sliding window for moving averages
โœ… Two pointers for duplicate detection
โœ… Binary search in sorted arrays

Example: โ€œDetect if a pair of values sum to 100โ€

๐ŸŽฏ Tip: Practice challenges that feel like real-world data work, not textbook CS exams.

Use platforms like:

StrataScratch
Hackerrank (SQL + Python)
Kaggle Code

I have curated the best interview resources to crack Data Science Interviews
๐Ÿ‘‡๐Ÿ‘‡
https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D

Like if you need similar content ๐Ÿ˜„๐Ÿ‘
โค3
๐—ง๐—ผ๐—ฝ ๐—ง๐—ฒ๐—ฐ๐—ต ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„ ๐—ค๐˜‚๐—ฒ๐˜€๐˜๐—ถ๐—ผ๐—ป๐˜€ - ๐—–๐—ฟ๐—ฎ๐—ฐ๐—ธ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—ก๐—ฒ๐˜…๐˜ ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฒ๐˜„๐Ÿ˜

๐—ฆ๐—ค๐—Ÿ:- https://pdlink.in/3SMHxaZ

๐—ฃ๐˜†๐˜๐—ต๐—ผ๐—ป :- https://pdlink.in/3FJhizk

๐—๐—ฎ๐˜ƒ๐—ฎ  :- https://pdlink.in/4dWkAMf

๐——๐—ฆ๐—” :- https://pdlink.in/3FsDA8j

 ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ :- https://pdlink.in/4jLOJ2a

๐—ฃ๐—ผ๐˜„๐—ฒ๐—ฟ ๐—•๐—œ :-  https://pdlink.in/4dFem3o

๐—–๐—ผ๐—ฑ๐—ถ๐—ป๐—ด :- https://pdlink.in/3F00oMw

Get Your Dream Tech Job In Your Dream Company๐Ÿ’ซ
โค1
Here are some essential data science concepts from A to Z:

A - Algorithm: A set of rules or instructions used to solve a problem or perform a task in data science.

B - Big Data: Large and complex datasets that cannot be easily processed using traditional data processing applications.

C - Clustering: A technique used to group similar data points together based on certain characteristics.

D - Data Cleaning: The process of identifying and correcting errors or inconsistencies in a dataset.

E - Exploratory Data Analysis (EDA): The process of analyzing and visualizing data to understand its underlying patterns and relationships.

F - Feature Engineering: The process of creating new features or variables from existing data to improve model performance.

G - Gradient Descent: An optimization algorithm used to minimize the error of a model by adjusting its parameters.

H - Hypothesis Testing: A statistical technique used to test the validity of a hypothesis or claim based on sample data.

I - Imputation: The process of filling in missing values in a dataset using statistical methods.

J - Joint Probability: The probability of two or more events occurring together.

K - K-Means Clustering: A popular clustering algorithm that partitions data into K clusters based on similarity.

L - Linear Regression: A statistical method used to model the relationship between a dependent variable and one or more independent variables.

M - Machine Learning: A subset of artificial intelligence that uses algorithms to learn patterns and make predictions from data.

N - Normal Distribution: A symmetrical bell-shaped distribution that is commonly used in statistical analysis.

O - Outlier Detection: The process of identifying and removing data points that are significantly different from the rest of the dataset.

P - Precision and Recall: Evaluation metrics used to assess the performance of classification models.

Q - Quantitative Analysis: The process of analyzing numerical data to draw conclusions and make decisions.

R - Random Forest: An ensemble learning algorithm that builds multiple decision trees to improve prediction accuracy.

S - Support Vector Machine (SVM): A supervised learning algorithm used for classification and regression tasks.

T - Time Series Analysis: A statistical technique used to analyze and forecast time-dependent data.

U - Unsupervised Learning: A type of machine learning where the model learns patterns and relationships in data without labeled outputs.

V - Validation Set: A subset of data used to evaluate the performance of a model during training.

W - Web Scraping: The process of extracting data from websites for analysis and visualization.

X - XGBoost: An optimized gradient boosting algorithm that is widely used in machine learning competitions.

Y - Yield Curve Analysis: The study of the relationship between interest rates and the maturity of fixed-income securities.

Z - Z-Score: A standardized score that represents the number of standard deviations a data point is from the mean.

Credits: https://t.me/free4unow_backup

Like if you need similar content ๐Ÿ˜„๐Ÿ‘
โค3๐Ÿ‘3
Real-world Data Science projects ideas: ๐Ÿ’ก๐Ÿ“ˆ

1. Credit Card Fraud Detection

๐Ÿ“ Tools: Python (Pandas, Scikit-learn)

Use a real credit card transactions dataset to detect fraudulent activity using classification models.

Skills you build: Data preprocessing, class imbalance handling, logistic regression, confusion matrix, model evaluation.

2. Predictive Housing Price Model

๐Ÿ“ Tools: Python (Scikit-learn, XGBoost)

Build a regression model to predict house prices based on various features like size, location, and amenities.

Skills you build: Feature engineering, EDA, regression algorithms, RMSE evaluation.


3. Sentiment Analysis on Tweets or Reviews

๐Ÿ“ Tools: Python (NLTK / TextBlob / Hugging Face)

Analyze customer reviews or Twitter data to classify sentiment as positive, negative, or neutral.

Skills you build: Text preprocessing, NLP basics, vectorization (TF-IDF), classification.


4. Stock Price Prediction

๐Ÿ“ Tools: Python (LSTM / Prophet / ARIMA)

Use time series models to predict future stock prices based on historical data.

Skills you build: Time series forecasting, data visualization, recurrent neural networks, trend/seasonality analysis.


5. Image Classification with CNN

๐Ÿ“ Tools: Python (TensorFlow / PyTorch)

Train a Convolutional Neural Network to classify images (e.g., cats vs dogs, handwritten digits).

Skills you build: Deep learning, image preprocessing, CNN layers, model tuning.


6. Customer Segmentation with Clustering

๐Ÿ“ Tools: Python (K-Means, PCA)

Use unsupervised learning to group customers based on purchasing behavior.

Skills you build: Clustering, dimensionality reduction, data visualization, customer profiling.


7. Recommendation System

๐Ÿ“ Tools: Python (Surprise / Scikit-learn / Pandas)

Build a recommender system (e.g., movies, products) using collaborative or content-based filtering.

Skills you build: Similarity metrics, matrix factorization, cold start problem, evaluation (RMSE, MAE).


๐Ÿ‘‰ Pick 2โ€“3 projects aligned with your interests.
๐Ÿ‘‰ Document everything on GitHub, and post about your learnings on LinkedIn.

Here you can find the project datasets: https://whatsapp.com/channel/0029VbAbnvPLSmbeFYNdNA29

React โค๏ธ for more
โค3
๐Ÿฐ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜๐—ผ ๐—ž๐—ถ๐—ฐ๐—ธ๐˜€๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—๐—ผ๐˜‚๐—ฟ๐—ป๐—ฒ๐˜† โ€” ๐—•๐—ฒ๐—ด๐—ถ๐—ป๐—ป๐—ฒ๐—ฟ-๐—™๐—ฟ๐—ถ๐—ฒ๐—ป๐—ฑ๐—น๐˜† & ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฒ๐—ฑ!๐Ÿ˜

Ready to kickstart your career in Data Scienceโ€”without spending a rupee?๐Ÿ’ฐ

These 4 beginner-friendly courses will help you build a strong foundation in data science by teaching you how to gather, clean, analyse, and visualise data๐Ÿ“Š๐Ÿ“Œ

๐—”๐—ฝ๐—ฝ๐—น๐˜† ๐—Ÿ๐—ถ๐—ป๐—ธ๐˜€:-๐Ÿ‘‡

https://pdlink.in/45uXCtI

An initiative supported by NASSCOM and the Government of Indiaโœ…๏ธ
โค2
๐Ÿณ ๐—ฅ๐—ฒ๐—ฎ๐—ฑ๐˜†-๐˜๐—ผ-๐—จ๐˜€๐—ฒ ๐—˜๐—บ๐—ฎ๐—ถ๐—น ๐—™๐—ผ๐—ฟ๐—บ๐—ฎ๐˜๐˜€ ๐˜๐—ผ ๐—œ๐—บ๐—ฝ๐—ฟ๐—ฒ๐˜€๐˜€ ๐—ฅ๐—ฒ๐—ฐ๐—ฟ๐˜‚๐—ถ๐˜๐—ฒ๐—ฟ๐˜€๐Ÿ˜

๐Ÿ“ฉ Struggling to write the perfect email to a recruiter?๐Ÿ—ฃ

Youโ€™re not alone. The way you write your email can make or break your first impression๐Ÿค

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3TtQh64

Having the right email format makes all the differenceโœ…๏ธ
Here are some essential data science concepts from A to Z:

A - Algorithm: A set of rules or instructions used to solve a problem or perform a task in data science.

B - Big Data: Large and complex datasets that cannot be easily processed using traditional data processing applications.

C - Clustering: A technique used to group similar data points together based on certain characteristics.

D - Data Cleaning: The process of identifying and correcting errors or inconsistencies in a dataset.

E - Exploratory Data Analysis (EDA): The process of analyzing and visualizing data to understand its underlying patterns and relationships.

F - Feature Engineering: The process of creating new features or variables from existing data to improve model performance.

G - Gradient Descent: An optimization algorithm used to minimize the error of a model by adjusting its parameters.

H - Hypothesis Testing: A statistical technique used to test the validity of a hypothesis or claim based on sample data.

I - Imputation: The process of filling in missing values in a dataset using statistical methods.

J - Joint Probability: The probability of two or more events occurring together.

K - K-Means Clustering: A popular clustering algorithm that partitions data into K clusters based on similarity.

L - Linear Regression: A statistical method used to model the relationship between a dependent variable and one or more independent variables.

M - Machine Learning: A subset of artificial intelligence that uses algorithms to learn patterns and make predictions from data.

N - Normal Distribution: A symmetrical bell-shaped distribution that is commonly used in statistical analysis.

O - Outlier Detection: The process of identifying and removing data points that are significantly different from the rest of the dataset.

P - Precision and Recall: Evaluation metrics used to assess the performance of classification models.

Q - Quantitative Analysis: The process of analyzing numerical data to draw conclusions and make decisions.

R - Random Forest: An ensemble learning algorithm that builds multiple decision trees to improve prediction accuracy.

S - Support Vector Machine (SVM): A supervised learning algorithm used for classification and regression tasks.

T - Time Series Analysis: A statistical technique used to analyze and forecast time-dependent data.

U - Unsupervised Learning: A type of machine learning where the model learns patterns and relationships in data without labeled outputs.

V - Validation Set: A subset of data used to evaluate the performance of a model during training.

W - Web Scraping: The process of extracting data from websites for analysis and visualization.

X - XGBoost: An optimized gradient boosting algorithm that is widely used in machine learning competitions.

Y - Yield Curve Analysis: The study of the relationship between interest rates and the maturity of fixed-income securities.

Z - Z-Score: A standardized score that represents the number of standard deviations a data point is from the mean.

Credits: https://t.me/free4unow_backup

Like if you need similar content ๐Ÿ˜„๐Ÿ‘
โค6
5โƒฃ frequently Asked SQL Interview Questions with Answers in data analyst interviews

๐Ÿ“1. Write a SQL query to find the average purchase amount for each customer. Assume you have two tables: Customers (CustomerID, Name) and Orders (OrderID, CustomerID, Amount).

SELECT c.CustomerID, c. Name, AVG(o.Amount) AS AveragePurchase
FROM Customers c
JOIN Orders o ON c.CustomerID = o.CustomerID
GROUP BY c.CustomerID, c. Name;


๐Ÿ“2. Write a query to find the employee with the minimum salary in each department from a table Employees with columns EmployeeID, Name, DepartmentID, and Salary.

SELECT e1.DepartmentID, e1.EmployeeID, e1 .Name, e1.Salary
FROM Employees e1
WHERE Salary = (SELECT MIN(Salary) FROM Employees e2 WHERE e2.DepartmentID = e1.DepartmentID);

๐Ÿ“3. Write a SQL query to find all products that have never been sold. Assume you have a table Products (ProductID, ProductName) and a table Sales (SaleID, ProductID, Quantity).

SELECT p.ProductID, p.ProductName
FROM Products p
LEFT JOIN Sales s ON p.ProductID = s.ProductID
WHERE s.ProductID IS NULL;

๐Ÿ“4. Given a table Orders with columns OrderID, CustomerID, OrderDate, and a table OrderItems with columns OrderID, ItemID, Quantity, write a query to find the customer with the highest total order quantity.

SELECT o.CustomerID, SUM(oi.Quantity) AS TotalQuantity
FROM Orders o
JOIN OrderItems oi ON o.OrderID = oi.OrderID
GROUP BY o.CustomerID
ORDER BY TotalQuantity DESC
LIMIT 1

;

๐Ÿ“5. Write a SQL query to find the earliest order date for each customer from a table Orders (OrderID, CustomerID, OrderDate).


SELECT CustomerID, MIN(OrderDate) AS EarliestOrderDate
FROM Orders
GROUP BY CustomerID


Hope it helps :)
โค2
๐Ÿฑ ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—š๐—ผ๐—ผ๐—ด๐—น๐—ฒ ๐—”๐—œ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐˜๐—ผ ๐—ž๐—ถ๐—ฐ๐—ธ๐˜€๐˜๐—ฎ๐—ฟ๐˜ ๐—ฌ๐—ผ๐˜‚๐—ฟ ๐—”๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ถ๐—ฎ๐—น ๐—œ๐—ป๐˜๐—ฒ๐—น๐—น๐—ถ๐—ด๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—–๐—ฎ๐—ฟ๐—ฒ๐—ฒ๐—ฟ๐Ÿ˜

๐ŸŽ“ You donโ€™t need to break the bank to break into AI!๐Ÿชฉ

If youโ€™ve been searching for beginner-friendly, certified AI learningโ€”Google Cloud has you covered๐Ÿค๐Ÿ‘จโ€๐Ÿ’ป

๐‹๐ข๐ง๐ค๐Ÿ‘‡:-

https://pdlink.in/3SZQRIU

๐Ÿ“All taught by industry-leading instructorsโœ…๏ธ
โค1