Analysis of education of Top 11-20. Forbes World’s Billionaires List. The Richest in 2021. MINING & METALLURGY.

8 out of 10 Billionaires graduated from the university.
Of these,
6 have education in business and economics,
1 - law,
1 - metallurgy and mining.
3 Billionaires are masters in business and economics,  1 Billionaires  is PhD in economics. 

Thus, 6 out of 8 billionaires of mining from Top 11-20 have an business and economics education and only 1 has an education in metallurgical & mining.

Ph.D. Natalia Petrovskaya

References

1. https://www.forbes.com
2. https://www.wikipedia.org