data science analytics

Question

How company gather consumer's data on basis of behavior and preference and how they do analytics?

Answer 1

Exactly "how" is every company's most preciously kept secret :)

Usually: sales reports (prices), website traffic and user journey data, clicks, scrolls, idles, wishlists, cookie data, browser data, network/machine data -- everything you can get.

Answer 2

How Do Companies Collect Consumer Data?
From websites/apps – What you click, visit, or buy

Using cookies – Tracks your browsing activity
Through social media – Likes, comments, shares
From purchases – What you bought, when, and how often
Feedback & surveys – What you think or review
Email behavior – What you open or click
How Do They Use (Analyze) the Data?
Clean the data – Remove errors or duplicates

How Do They Use (Analyze) the Data?
Group customers – Like "regular buyers" or "deal hunters"
Find patterns – What sells more, when, and why
Predict behavior – Who might buy again or stop
Personalize offers – Based on your interests
Test what works – Like which email or ad gets better response