Tech - Jroshan - Invidious

Tech - Jroshan

Welcome to Tech Jroshan — your one-stop destination to learn Data Analysis, Data Science, Python, SQL, Machine Learning, Deep Learning, Generative AI, and Agentic AI from scratch to advanced!

This channel is dedicated to helping students, beginners, freshers, and career switchers build real skills and land high-paying jobs in the tech & AI industry.

Here you’ll learn:
📌 Data Analysis:
SQL • Excel • Python • Power BI • EDA • Dashboards

📌 Data Science:
Numpy • Pandas • Statistics • ML • Feature Engineering

📌 DL:
Neural Networks • TensorFlow • Keras • PyTorch • Computer Vision

📌 AI & Automation:
Generative AI • Agentic AI • LLMs

📌 Career Guidance:
Roadmaps • Portfolio projects • Resume tips • Interview preparation

If your goal is to become a Data Analyst, Data Scientist this channel will guide you step-by-step with roadmaps, tutorials, projects, and real-world explanations.

🚀 Subscribe now and upgrade your tech career!

Instagram: @tech_jroshan
YouTube: @tech_jroshan

View channel on YouTube

Switch Invidious Instance

Videos

Shorts

Courses

Playlists

Posts

Tech - jroshan

What is the difference between np.copy() and np.view()?

A.🔹 copy() creates new data, view() creates a shallow reference

B.🔹copy() creates a shallow reference, view() creates deep copy

C.🔹 Both create new independent arrays

D.🔹 Both point to same memory

1. 🔹Python Complete Roadmap
https://youtu.be/ugn5lbCyfs4?feature=...

2. 🔹SQL Leet Code Questions
https://youtu.be/qKTo8V7QycM?feature=...

3. 🔹 Data Science Roadmap
https://youtu.be/tseiCVfAI3g?feature=...

4. 🔹Python Operators
youtube.com/shorts/I-1UkDkv-T...

Data analysis to data science
https://youtu.be/JkNd2qEX7gM

Life experiences share
youtube.com/shorts/BxLzgL7wXr...

Sql top interview questions
https://youtu.be/PNZ-uWdJULY

Why Companies need data base or kaha store karti hai
youtube.com/shorts/5EOrWdHS5Y...

Coding is important
youtube.com/shorts/aXCAhGZoo6...

Data science is easy or hard
youtube.com/shorts/g2mZkgt4VO...

Python is easy
youtube.com/shorts/6hSPAeaUOq...

Customer did not make any transition 1581
https://youtu.be/aBkUzZjkFi0

Leet code 1667
youtube.com/shorts/M4evfrcRlr...

Leet code 1068
youtube.com/shorts/qw_AVC8ggj...

🔥 Join Groups for the latest Update and Notes:-
whatsapp.com/channel/0029Va53iL3D8SE74GZFsz3i

🎯 Test Your SQL Skills – Free Quiz!
forms.gle/Afux5noATe5qRgB9A

🌈Join my YouTube channel for in-depth discussions
youtube.com/@tech_jroshan

🔗let's build a strong professional community together. Connect now!
www.linkedin.com/in/roshan-jha-tech

Please ping your questions or query 🔥

#Python #SQL #DataAnalysis #DataScience #LeetCode #ProblemSolving #Statistics #InterviewQuestions #MachineLearningEngineering

1 day ago | [YT] | 1

View 0 replies

Tech - jroshan

Which is not a measure of central tendency?
A) 🔹Mean
B) 🔹Median
C) 🔹IQR
D) 🔹Mode

1. 🔹Python Complete Roadmap
https://youtu.be/ugn5lbCyfs4?feature=...

2. 🔹SQL Leet Code Questions
https://youtu.be/qKTo8V7QycM?feature=...

3. 🔹 Data Science Roadmap
https://youtu.be/tseiCVfAI3g?feature=...

4. 🔹Python Operators
youtube.com/shorts/I-1UkDkv-T...

Data analysis to data science
https://youtu.be/JkNd2qEX7gM

Life experiences share
youtube.com/shorts/BxLzgL7wXr...

Sql top interview questions
https://youtu.be/PNZ-uWdJULY

Why Companies need data base or kaha store karti hai
youtube.com/shorts/5EOrWdHS5Y...

Coding is important
youtube.com/shorts/aXCAhGZoo6...

Data science is easy or hard
youtube.com/shorts/g2mZkgt4VO...

Python is easy
youtube.com/shorts/6hSPAeaUOq...

Customer did not make any transition 1581
https://youtu.be/aBkUzZjkFi0

Leet code 1667
youtube.com/shorts/M4evfrcRlr...

Leet code 1068
youtube.com/shorts/qw_AVC8ggj...

🔥 Join Groups for the latest Update and Notes:-
whatsapp.com/channel/0029Va53iL3D8SE74GZFsz3i

🎯 Test Your SQL Skills – Free Quiz!
forms.gle/Afux5noATe5qRgB9A

🌈Join my YouTube channel for in-depth discussions
youtube.com/@tech_jroshan

🔗let's build a strong professional community together. Connect now!
www.linkedin.com/in/roshan-jha-tech

Please ping your questions or query 🔥

#Python #SQL #DataAnalysis #DataScience #LeetCode #ProblemSolving #Statistics #InterviewQuestions #MachineLearningEngineering

3 days ago | [YT] | 2

View 0 replies

Tech - jroshan

𝗧𝗿𝗮𝗶𝗻𝗶𝗻𝗴 𝗗𝗮𝘁𝗮 𝘃𝘀 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝗗𝗮𝘁𝗮 📊

𝗨𝗻𝗱𝗲𝗿𝗳𝗶𝘁𝘁𝗶𝗻𝗴 𝘃𝘀 𝗢𝘃𝗲𝗿𝗳𝗶𝘁𝘁𝗶𝗻𝗴 ⚖️

(𝑶𝒏𝒆 𝒐𝒇 𝒕𝒉𝒆 𝑴𝑶𝑺𝑻 𝒂𝒔𝒌𝒆𝒅 𝑴𝑳 𝒒𝒖𝒆𝒔𝒕𝒊𝒐𝒏𝒔)

𝑴𝒂𝒏𝒚 𝑴𝑳 𝒎𝒐𝒅𝒆𝒍𝒔 𝒇𝒂𝒊𝒍 𝒏𝒐𝒕 𝒃𝒆𝒄𝒂𝒖𝒔𝒆 𝒐𝒇 𝒂𝒍𝒈𝒐𝒓𝒊𝒕𝒉𝒎𝒔

B𝒖𝒕 𝒃𝒆𝒄𝒂𝒖𝒔𝒆 𝒕𝒉𝒆𝒔𝒆 𝒃𝒂𝒔𝒊𝒄𝒔 𝒂𝒓𝒆 𝒎𝒊𝒔𝒖𝒏𝒅𝒆𝒓𝒔𝒕𝒐𝒐𝒅.

𝑳𝒆𝒕’𝒔 𝒇𝒊𝒙 𝒕𝒉𝒂𝒕 👇

🧠𝑻𝒓𝒂𝒊𝒏𝒊𝒏𝒈 𝑫𝒂𝒕𝒂 𝒗𝒔 𝑻𝒆𝒔𝒕𝒊𝒏𝒈 𝑫𝒂𝒕𝒂

1. Training Data

- Used to teach the model

- Model learns patterns from this data

📌 Think: Study material

2. Testing Data

- Used to evaluate the model

- Never shown during training

📌 Think: Final exam

⚠️ 𝑼𝒏𝒅𝒆𝒓𝒇𝒊𝒕𝒕𝒊𝒏𝒈 𝒗𝒔 𝑶𝒗𝒆𝒓𝒇𝒊𝒕𝒕𝒊𝒏𝒈

1. 𝑼𝒏𝒅𝒆𝒓𝒇𝒊𝒕𝒕𝒊𝒏𝒈

- Model is too simple

- Fails on training data ❌

- Fails on testing data ❌

- 🧠 Meaning: Model didn’t learn enough

- Example:

- Linear model for complex data

2. 𝑶𝒗𝒆𝒓𝒇𝒊𝒕𝒕𝒊𝒏𝒈

- Model is too complex

- Performs very well on training ✅

- Performs poorly on testing ❌

- 🧠 Meaning: Model memorized, not learned

- Example:

- Very deep model on small data

⚖️𝗧𝗵𝗲 𝗚𝗼𝗮𝗹: 𝗚𝗼𝗼𝗱 𝗙𝗶𝘁

1. Performs well on training ✅

2. Performs well on testing ✅

📌 This is where real ML works

🎯 One-Line Interview Answer

Underfitting means the model is too simple to learn patterns,

While overfitting means the model learns noise instead of general patterns.

💡 𝑭𝒊𝒏𝒂𝒍 𝑻𝒉𝒐𝒖𝒈𝒉𝒕

Machine Learning is not about

❌ maximum accuracy on training data

✔️ but generalization on unseen data

That’s the real intelligence.

#MachineLearning #DataScience #AI #MLBasics #Underfitting #Overfitting #TrainingData #TestingData #LearningInPublic #FreeResource #TechJroshan #CodeJroshan #InterviewQuestions

4 days ago | [YT] | 3

View 0 replies

Tech - jroshan

What reduces variance in a model?
A) 🔸Dropout
B) 🔸Regularization
C) 🔸More data
D) 🔸Normalization

1. 🔹Python Complete Roadmap
https://youtu.be/ugn5lbCyfs4?feature=...

2. 🔹SQL Leet Code Questions
https://youtu.be/qKTo8V7QycM?feature=...

3. 🔹 Data Science Roadmap
https://youtu.be/tseiCVfAI3g?feature=...

4. 🔹Python Operators
youtube.com/shorts/I-1UkDkv-T...

Data analysis to data science
https://youtu.be/JkNd2qEX7gM

Life experiences share
youtube.com/shorts/BxLzgL7wXr...

Sql top interview questions
https://youtu.be/PNZ-uWdJULY

Why Companies need data base or kaha store karti hai
youtube.com/shorts/5EOrWdHS5Y...

Coding is important
youtube.com/shorts/aXCAhGZoo6...

Data science is easy or hard
youtube.com/shorts/g2mZkgt4VO...

Python is easy
youtube.com/shorts/6hSPAeaUOq...

Customer did not make any transition 1581
https://youtu.be/aBkUzZjkFi0

Leet code 1667
youtube.com/shorts/M4evfrcRlr...

Leet code 1068
youtube.com/shorts/qw_AVC8ggj...

🔥 Join Groups for the latest Update and Notes:-
whatsapp.com/channel/0029Va53iL3D8SE74GZFsz3i

🎯 Test Your SQL Skills – Free Quiz!
forms.gle/Afux5noATe5qRgB9A

🌈Join my YouTube channel for in-depth discussions
youtube.com/@tech_jroshan

🔗let's build a strong professional community together. Connect now!
www.linkedin.com/in/roshan-jha-tech

Please ping your questions or query 🔥

#Python #SQL #DataAnalysis #DataScience #LeetCode #ProblemSolving #Statistics #InterviewQuestions #MachineLearningEngineering

6 days ago | [YT] | 3

View 0 replies

Tech - jroshan

Skill upgrade ka real impact kab hota hai?
A) 🔸Sirf certificate lene se
B)🔸 Jab resume colourful ho
C) 🔸Jab projects + proof dikhte hai
D) 🔸Jab HR bole “Good”

1. 🔹Python Complete Roadmap
https://youtu.be/ugn5lbCyfs4?feature=...

2. 🔹SQL Leet Code Questions
https://youtu.be/qKTo8V7QycM?feature=...

3. 🔹 Data Science Roadmap
https://youtu.be/tseiCVfAI3g?feature=...

4. 🔹Python Operators
youtube.com/shorts/I-1UkDkv-T...

Data analysis to data science
https://youtu.be/JkNd2qEX7gM

Life experiences share
youtube.com/shorts/BxLzgL7wXr...

Sql top interview questions
https://youtu.be/PNZ-uWdJULY

Why Companies need data base or kaha store karti hai
youtube.com/shorts/5EOrWdHS5Y...

Coding is important
youtube.com/shorts/aXCAhGZoo6...

Data science is easy or hard
youtube.com/shorts/g2mZkgt4VO...

Python is easy
youtube.com/shorts/6hSPAeaUOq...

Customer did not make any transition 1581
https://youtu.be/aBkUzZjkFi0

Leet code 1667
youtube.com/shorts/M4evfrcRlr...

Leet code 1068
youtube.com/shorts/qw_AVC8ggj...

🔥 Join Groups for the latest Update and Notes:-
whatsapp.com/channel/0029Va53iL3D8SE74GZFsz3i

🎯 Test Your SQL Skills – Free Quiz!
forms.gle/Afux5noATe5qRgB9A

🌈Join my YouTube channel for in-depth discussions
youtube.com/@tech_jroshan

🔗let's build a strong professional community together. Connect now!
www.linkedin.com/in/roshan-jha-tech

Please ping your questions or query 🔥

#Python #SQL #DataAnalysis #DataScience #LeetCode #ProblemSolving #Statistics #InterviewQuestions #MachineLearningEngineering

1 week ago | [YT] | 2

View 0 replies

Tech - jroshan

🇮🇳 𝟐𝟔 𝐉𝐚𝐧𝐮𝐚𝐫𝐲 | 𝐑𝐞𝐩𝐮𝐛𝐥𝐢𝐜 𝐃𝐚𝐲 𝐒𝐩𝐞𝐜𝐢𝐚𝐥 🇮🇳
𝑂𝑛 𝑡ℎ𝑖𝑠 𝑅𝑒𝑝𝑢𝑏𝑙𝑖𝑐 𝐷𝑎𝑦, 𝑙𝑒𝑡’𝑠 𝑐𝑒𝑙𝑒𝑏𝑟𝑎𝑡𝑒 𝑓𝑟𝑒𝑒𝑑𝑜𝑚 𝑤𝑖𝑡ℎ 𝑟𝑒𝑠𝑝𝑜𝑛𝑠𝑖𝑏𝑖𝑙𝑖𝑡𝑦 𝑎𝑛𝑑 𝑔𝑟𝑜𝑤𝑡ℎ 𝑤𝑖𝑡ℎ 𝑠𝑘𝑖𝑙𝑙𝑠.

📊 𝘋𝘢𝘵𝘢 𝘈𝘯𝘢𝘭𝘺𝘴𝘪𝘴 𝘵𝘦𝘢𝘤𝘩𝘦𝘴 𝘶𝘴 𝘵𝘰 𝘲𝘶𝘦𝘴𝘵𝘪𝘰𝘯 𝘯𝘶𝘮𝘣𝘦𝘳𝘴, 𝘯𝘰𝘵 𝘣𝘭𝘪𝘯𝘥𝘭𝘺 𝘵𝘳𝘶𝘴𝘵 𝘵𝘩𝘦𝘮.

🤖 𝘋𝘢𝘵𝘢 𝘚𝘤𝘪𝘦𝘯𝘤𝘦 𝘦𝘮𝘱𝘰𝘸𝘦𝘳𝘴 𝘶𝘴 𝘵𝘰 𝘵𝘶𝘳𝘯 𝘳𝘢𝘸 𝘥𝘢𝘵𝘢 𝘪𝘯𝘵𝘰 𝘳𝘦𝘢𝘭-𝘸𝘰𝘳𝘭𝘥 𝘪𝘮𝘱𝘢𝘤𝘵.

🧠 𝗔𝗜 & 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗴𝗶𝘃𝗲 𝘂𝘀 𝘁𝗵𝗲 𝗽𝗼𝘄𝗲𝗿 𝘁𝗼 𝗯𝘂𝗶𝗹𝗱 𝗶𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝘁 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝗳𝗼𝗿 𝗮 𝗯𝗲𝘁𝘁𝗲𝗿 𝗳𝘂𝘁𝘂𝗿𝗲.

𝑱𝒖𝒔𝒕 𝒍𝒊𝒌𝒆 𝒐𝒖𝒓 𝑪𝒐𝒏𝒔𝒕𝒊𝒕𝒖𝒕𝒊𝒐𝒏 𝒈𝒊𝒗𝒆𝒔 𝒖𝒔 𝒓𝒊𝒈𝒉𝒕𝒔 𝒂𝒏𝒅 𝒅𝒖𝒕𝒊𝒆𝒔,
𝒕𝒉𝒆 𝒕𝒆𝒄𝒉 𝒘𝒐𝒓𝒍𝒅 𝒅𝒆𝒎𝒂𝒏𝒅𝒔 𝒔𝒌𝒊𝒍𝒍𝒔 + 𝒅𝒊𝒔𝒄𝒊𝒑𝒍𝒊𝒏𝒆 + 𝒄𝒐𝒏𝒕𝒊𝒏𝒖𝒐𝒖𝒔 𝒍𝒆𝒂𝒓𝒏𝒊𝒏𝒈.

🚀 𝐓𝐡𝐞 𝐟𝐮𝐭𝐮𝐫𝐞 𝐨𝐟 𝐈𝐧𝐝𝐢𝐚 𝐢𝐬 𝐛𝐞𝐢𝐧𝐠 𝐛𝐮𝐢𝐥𝐭 𝐛𝐲:

𝐷𝑎𝑡𝑎-𝑑𝑟𝑖𝑣𝑒𝑛 𝑑𝑒𝑐𝑖𝑠𝑖𝑜𝑛𝑠
𝐸𝑡ℎ𝑖𝑐𝑎𝑙 𝐴𝐼
𝑆𝑘𝑖𝑙𝑙𝑒𝑑 𝑝𝑟𝑜𝑓𝑒𝑠𝑠𝑖𝑜𝑛𝑎𝑙𝑠, 𝑛𝑜𝑡 𝑗𝑢𝑠𝑡 𝑑𝑒𝑔𝑟𝑒𝑒𝑠
𝑇ℎ𝑖𝑠 𝑅𝑒𝑝𝑢𝑏𝑙𝑖𝑐 𝐷𝑎𝑦, 𝑡𝑎𝑘𝑒 𝑎 𝑝𝑙𝑒𝑑𝑔𝑒: 𝑈𝑝𝑠𝑘𝑖𝑙𝑙 𝑦𝑜𝑢𝑟𝑠𝑒𝑙𝑓. 𝐵𝑢𝑖𝑙𝑑 𝑟𝑒𝑠𝑝𝑜𝑛𝑠𝑖𝑏𝑙𝑦. 𝐼𝑛𝑛𝑜𝑣𝑎𝑡𝑒 𝑓𝑒𝑎𝑟𝑙𝑒𝑠𝑠𝑙𝑦.

🇮🇳 𝐉𝐚𝐢 𝐇𝐢𝐧𝐝 | 𝐇𝐚𝐩𝐩𝐲 𝐑𝐞𝐩𝐮𝐛𝐥𝐢𝐜 𝐃𝐚𝐲 🇮🇳

MachineLearning ,AIcareer , DigitalIndia ,SkillIndia , TechForIndia

#RepublicDay #26January #DataAnalysis #DataScience #ArtificialIntelligence