Random assignment will be useful in he research by Professor Menendez to ensure that each participant has equal chance.
<h3>What is a random assignment?</h3>
A random assignment simply means the use of chance procedure to ensure that everyone has an equal chance of being selected.
Placebo condition is any treatment which has no active properties. It's when people experience a benefit after the administration of an inactive treatment.
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Answer:

Well, you can take the example of different genres of music. One person might like pop while others might be more interested in country, jazz, hip hop etc. So, what seems good for one might not seem good for others due to their tastes in different things.

I don't see the picture so i can't answer your question
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