Which website Correlation is more accurate?

Example:
1. https://www.myfxbook.com/forex-market/correlation
2. https://www.fxblue.com/market-data/t...elation-matrix
3. https://www.mataf.net/en/forex/tools/correlation

Using the same time frame for the 3 websites, 1 showing 95% correlated while the other shows only 70% correlated.

So how do we know which is correct?

The accuracy of correlation data between different websites can vary due to differences in data sources and calculation methodologies. In this specific case, when comparing three websites with the same time frame, one displaying a 95% correlation and another showing only 70% correlation, it's essential to consider the following factors: the sources of data, the specific currency pairs or assets being analyzed, and the calculation methods employed by each website.

To determine which website is more accurate, it's advisable to cross-reference their data with reliable financial sources, consider their reputation and credibility within the financial community, and assess their transparency in disclosing their data sources and calculation methodologies. Ultimately, a comprehensive analysis and comparison of multiple reliable sources may help in determining the most accurate correlation data for your specific needs.