🍽️ Zomato Data Analysis – Python Project

A data-driven exploration of Zomato’s restaurant dataset, focused on uncovering insights into cuisines, pricing trends, user ratings, and geographical distributions. A strong addition to any data science portfolio.

📊 Key Features
• Exploratory Data Analysis (EDA) with Pandas & Matplotlib
• City-wise restaurant insights & trends
• Cuisine popularity and rating comparisons
• Visualizations using Seaborn & Plotly
• Ideal for learning data wrangling and storytelling

🔗 Access the Full Project:
Zomato Data Analysis – Python

📢 Explore more data science projects and source code:
🔗 https://t.me/Projectwithsourcecodes

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📊 Data Analysis Interview Questions with Answers (Part 1)

1️⃣ What is Data Analysis?

👉 Data Analysis is the process of collecting, cleaning, transforming, and examining data to discover useful insights and support better decision-making.

📌 Raw Data → Cleaning → Analysis → Insights → Decision

Examples:
• Sales Analysis 📈
• Customer Analysis 👥
• Financial Analysis 💰
• Website Traffic Analysis 🌐

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2️⃣ What are the Main Steps in Data Analysis?

👉 A typical data analysis workflow includes:

🔹 Data Collection
🔹 Data Cleaning
🔹 Data Exploration
🔹 Data Transformation
🔹 Data Visualization
🔹 Statistical Analysis
🔹 Insight Generation
🔹 Reporting

💡 The exact workflow can vary depending on the project and type of data.

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3️⃣ What is Data Cleaning?

👉 Data Cleaning is the process of identifying and correcting inaccurate, incomplete, duplicate, or inconsistent data.

Common tasks include:

🔹 Handling missing values
🔹 Removing duplicates
🔹 Correcting data types
🔹 Handling outliers
🔹 Standardizing values

Example:

import pandas as pd

df = pd.read_csv("sales.csv")

df = df.drop_duplicates()
df["Sales"] = df["Sales"].fillna(0)

💡 Clean data is essential for reliable analysis.

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4️⃣ What is Exploratory Data Analysis (EDA)?

👉 EDA is the process of understanding a dataset by examining its structure, distributions, relationships, and unusual patterns before deeper analysis.

Common EDA techniques:

📊 Summary Statistics
📈 Distribution Analysis
🔗 Correlation Analysis
📦 Outlier Detection
📉 Data Visualization

Example:

print(df.head())
print(df.info())
print(df.describe())

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5️⃣ What is Data Visualization?

👉 Data Visualization is the process of representing data using charts and graphs so that trends, patterns, and comparisons are easier to understand.

Common visualizations:

📊 Bar Chart → Compare categories
📈 Line Chart → Show trends over time
🥧 Pie Chart → Show proportions
📦 Box Plot → Analyze distribution and outliers
🔵 Scatter Plot → Show relationships between variables

Popular Python libraries:

🔹 Matplotlib
🔹 Seaborn
🔹 Plotly

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💬 Save this for your Data Analysis interview preparation!

🔥 Part 2 will cover 5 important questions on Mean, Median, Mode, Variance & Standard Deviation.

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