Social & Preventive Medicine If a 95% confidence interval for prevalence of cancer smokers aged> 65 years is 56% to 76%, the chance that the prevalence could be less than 56% is- A Nil B 44% C 2.50% D 5% 💡 Explanation If a 95% confidence interval for prevalence of cancer smokers aged> 65 years is 56% to 76%, the chance that the prevalence could be less than 56% is- ✓ Correct Answer: C. 2.50%