user24560: Is there a correlation between the value of Ripple (XRP) and Bitcoin (BTC)?

user5406: Bitcoin and Ripple's past 90 days prices somewhat correlated
Using price charts of the last 90 days in XRP/USD and BTC/USD, the daily prices of Ripple and Bitcoin appear to be somewhat correlated: Their correlation coefficient comes out as 0.741.
Correlations in Coingecko's Top Ten
I've proceeded to check the past 90 days correlations of the top ten cryptocurrencies as listed on Coingecko.com:

In the past ninety days:

Litecoin and Bitshares had a correlation of 0.93, as had Litecoin and NXT.
Bitcoin appears to be most correlated with Ripple and Litecoin, both 0.74.
Bitcoin appears to be least correlated with Stellar, at -0.19
The least correlation appears to be between Dogecoin and Monero at -0.05.


Procedure
All data was taken from Coingecko's last 90 days pricecharts on 2015-06-08. Therafter, I plugged them into LibreOffice, and ran Correl(A;B) on each pair.

24560: <p>Is there a correlation between the value of Ripple (XRP) and Bitcoin (BTC)?</p>
 5406: <h2>Bitcoin and Ripple's past 90 days prices somewhat correlated</h2>

<p>Using price charts of the last 90 days in <a href="https://www.coingecko.com/en/price_charts/ripple/usd/90_days" rel="nofollow noreferrer">XRP/USD</a> and <a href="https://www.coingecko.com/en/price_charts/bitcoin/usd/90_days" rel="nofollow noreferrer">BTC/USD</a>, the daily prices of Ripple and Bitcoin appear to be somewhat correlated: Their correlation coefficient comes out as <strong>0.741</strong>.</p>

<h2>Correlations in Coingecko's Top Ten</h2>

<p>I've proceeded to check the past 90 days correlations of the top ten cryptocurrencies as listed on Coingecko.com:</p>

<p><img src="https://i.stack.imgur.com/bsOnh.png" alt="Top ten price correlation last 90 days"></p>

<p>In the past ninety days:</p>

<ul>
<li>Litecoin and Bitshares had a correlation of 0.93, as had Litecoin and NXT.</li>
<li>Bitcoin appears to be most correlated with Ripple and Litecoin, both 0.74.</li>
<li>Bitcoin appears to be least correlated with Stellar, at -0.19</li>
<li>The least correlation appears to be between Dogecoin and Monero at -0.05.</li>
</ul>

<hr>

<h2>Procedure</h2>

<p>All data was taken from Coingecko's last 90 days pricecharts on 2015-06-08. Therafter, I plugged them into LibreOffice, and ran Correl(A;B) on each pair.</p>
