Dont spend more than $200 on your first bass. You have no idea what you want. What will be comfortable for you. What has the sound tou want .
Buy any $100-200 bass and learn to play it. Over time you will learn what you want, what feels right to you. Then spend the $$.
While I agree with the concept of a newbie spending a small amount of money on their 1st bass, I think that I'd go higher on your dollar numbers.
If I was buying new, then I'd draw the line at $400. Buying used, I'd be wary of anything less than $200.
I've played too many $150 - $250 basses that were technically playable, had too many compromises in sound and playability which is the worst obstacle in the path of a new bassist trying to become proficient and develop a passion for playing.