Answer:the answer to ur question is yes
Explanation:
hope this helps l
Answer: Double blind clinical trial
Explanation:
The situation that is seen here is double blind clinical trail in which neither the participant nor the practitioner knows who is receiving the treatment.
This is used to prevent biasing in the experiment which is caused due to demand characteristics or placebo effect.
Here, in this situation the dog handlers and the experimental observer both were blinded to identify the breath sample.
Answer:
bob is a criminal with head square-jawed face,keen eyes and a little white scar near his right eyebrows whereas jimmy is a crop
