This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
Significant value of `p' is ? 
Select and explain. 
A. 0.01, B. 0.02, C. 0.04, D. 0.05
D: 0.05
Answer: D: 0.05 
Explanation: Ans. is 'd' i.e., 0.05 P is the probability that the difference seen between 2 samples occurs due to chance". If p . .05 it is considered statistically significant. It means that There is 5% probability that the result could have been obtained by chance. or The investigator can be 95% sure that the result was not obtained by chance.