Perhaps that is true for poker and sports betting (although I don't believe tertiary level mathematics is a pre-requisite), but you don't necessarily need to be

Perhaps that is true for poker and sports betting (although I don't believe tertiary level mathematics is a pre-requisite), but you don't necessarily need to be good at maths to be successful in business. Dedication, vision, relationships and a whole host of other factors combine in successful business management, which can go a long way towards mitigating risk.