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Top Questions People Ask About Pandas, NumPy, Matplotlib & Scikit-learn — Answered!

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 Whether you're a beginner or brushing up on your skills, these are the real-world questions Python learners ask most about key libraries in data science. Let’s dive in! 🐍 🐼 Pandas: Data Manipulation Made Easy 1. How do I handle missing data in a DataFrame? df.fillna( 0 ) # Replace NaNs with 0 df.dropna() # Remove rows with NaNs df.isna(). sum () # Count missing values per column 2. How can I merge or join two DataFrames? pd.merge(df1, df2, on= 'id' , how= 'inner' ) # inner, left, right, outer 3. What is the difference between loc[] and iloc[] ? loc[] uses labels (e.g., column names) iloc[] uses integer positions df.loc[ 0 , 'name' ] # label-based df.iloc[ 0 , 1 ] # index-based 4. How do I group data and perform aggregation? df.groupby( 'category' )[ 'sales' ]. sum () 5. How can I convert a column to datetime format? df[ 'date' ] = pd.to_datetime(df[ 'date' ]) ...
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10 Complex UX interview Questions

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In this post, I have shared complex UX design interview questions that are useful for your next interview. The term user experience popularly call it as UX.
UX design

If any question difficult to answer in the interviews, you can say it as ' complex'.

I am sure, the listed questions boost your knowledge.

10 Complex UX interview Questions

1) What is UX and what to ensure?

A). Good UX can ensure that customers use and actually enjoy the experiences you design. 

If you've ever used a website, software application, or product interface that confused you, you've probably experienced a design process that did not leverage UX best practices. 

In addition, UX can be a key component in establishing customer loyalty and goodwill.

2) What are the top 3 promises of good UX design?

A). The three promises are a) Usable, b) Useful and c) Desirable

3) What are the four elements in information architecture?

A). The 4 elements are :
a) Navigation
b) Content organization
c) Visual priority and 
d) Interaction design

4) What is content Strategy?

A). Content strategy determines how, why, where, and when content will go into an experience.

5) What is Interaction design?

A). The rules for how a user interacts with an experience: what happens when users navigate, choose buttons, and follow links, for instance. 

Interaction design helps to define the journey a user goes through to accomplish a task.

6) What are four benefits of good UI design?

A). 
  • Traffic
  • Brand expansion
  • Customer Loyalty
  • Revenues
7) What are Dead ends in UI design?

A). dead links; nonworking buttons; or links that take users to features they did not expect

8) What are different phases in UI design?

A).
  • Define
  • Design
  • Build
  • Test
  • Promote to production
  • Maintenance
9) What is the difference better User Experience Vs Customer Experience?

A). The user experience typically refers to digital experience. Customer experience mans, it is from all channels of customers

10) What are Desires in UI design?

A). In addition to solving his basic needs, the user also typically has key desires he would like to fulfil. 

The gift shop owners might understand that a man shopping for a tenth-anniversary gift for his wife will probably want to show his wife just how much he cares, and is therefore looking for "that perfect gift."

When the gift shop owners understand this desire, they can help the customer select the perfect gift and personalize the wrapping.

Summary

UX or UI designers role is to understand customer requirements and to implement these in the client projects.

These people must work with product managers and engineers. And must be in a position to give presentation on the benefits and requirements to all technical engineers. 

These guys also prepare flowcharts on different navigation requirements.

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