Answer: d. double-blind
Explanation:
A double blind study can be define as the study in which both the researcher and participant do not know which participant is receiving a particular treatment. This method is useful as it prevents the bias in the results of the experiment.
The given situation is the example of double-blind study. Here, the participants as well as the researcher do not know which group of subject are receiving bacteria in the yogurt and which group is not receiving.
Answer:
Yes...They can.
If this is another one of those true or false questions this would be "true"
Answer: no but there is one of the oldest sport which is basketball
Explanation: Baseball is one of the oldest sports in the United States. It has not undergone any major changes since its original inception with the exception of equipment being upgraded.
