Is it worth it to take Udacity data science courses?

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I am beginner in Data Science and machine learning field. I am searching for the tutorials to learn:

Is it worth it to take Udacity data science courses?

Try to provide me good examples or tutorials links so that I can learn the topic "Is it worth it to take Udacity data science courses?". Also tell me which is the good training courses in Machine Learning, Artificial Intelligence and Data Science for beginners.

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