Hi Franklin. I see that you are getting some good feedback here and I thought I'd give you my input as well. It feels to me like you've thought a lot in detail about what led you to be interested in this subject/ program. That's okay, but you're missing an opportunity here to showcase yourself in a positive light. I hate to say it, but admissions committees don't care that much about how/ why you became interested, but rather what you've done with that interest. Your first two paragraphs do give a little background information about you, but it feels unimportant to me- they're not really saying anything about you that shows the admissions people what a successful student you'll be. It's completely extraneous and unnecessary. In fact, saying you aren't computer savvy ( no "a" needed there) and weren't sure about your interest will hurt you more than it will help you.
You mention your public policy scholarship so briefly! Those are the kinds of accolades and achievements you should be highlighting. Even if the achievement wasn't in data science you can still connect them. Think about how being successful in public policy will help you to be successful in data science. Or how that influenced your interests/ goals regarding data science.
I wanted to study development economics
I think this makes a good starting point for your revised SOP. Most of what comes before that is irrelevant. It connects both public policy and data science, and expresses your passion and goals for data science. What you have after this paragraph is okay, but I think you need to discuss your goals more when it comes to data science and utilizing that within the realm of public policy. Discuss some concrete things. You discuss the slow development of your country- think about how this education will give you the tools to change that.
Right now you're just kind of listing reasons why you're interested in this program, but you need to portray more than interests. You're saying, I want this degree in X so that I can be good a Y. I'm not sure that will be looked on very positively by the admissions committee. You need to show passion and your goals for data science all on its own.Some things to think about:
Why this specific program at this specific school?
Why are you a good fit for it?
How have your previous experiences prepared you for this education?
What skills, talents, characteristics, etc... have prepared you to succeed in this program? How will they do this?
What are your plans? What are you going to do with this education?
What kinds of problems do you aim to solve with this education?