And we know that probability a case was exposed is a upon a plus c and probability that the case was not exposed is c upon a plus c and the ration of these 2 probabilities is a by c
आणि आपल्याला माहिती आहे केसेस (Cases) एक्सपोज्ड (Exposed) असण्याची संभाव्यता म्हणजे ‘[a/(a+ c)]’ आणि केसेस (Cases) एक्सपोज्ड (Exposed) नसण्याची संभाव्यता म्हणजे ‘[c/(a+c)]’ आणि या दोन संभाव्यतांचा रेशो (Ratio) आहे ‘a/c’.