Hey Ravencoin Binance.US crypto investors- question about market patterns

Newbie question:

I began my crypto investing with Ravencoin and have been learning about Crypto from this first investment. I began investing in Ravencoin with all my DOGE earnings, into RVN at .03 cents.

Is it already common knowledge that the coins fluctuate somewhat in parallel, for the most part?

Since I’m new as of February, I’m just picking up on this on my own. For example, if I want to pull my ETH and buy the dip in RVN- the dip is relevant to ETH, most of the time. Same if I want to pull MATIC and do the same for any other coin. It’s always a relevant amount.

Is this standard? Why are the coins so closely related in price volume while trading?

Ie: if I want to pull all of my ETH to buy 25000 RVN, I’m always at 21000 RVN for a purchase, as the fluctuations are seemingly in parallel- not too often dipping or heightening enough to allow a high advantage aside from your average P&D?