Five students were tested before and after taking a class to improve their study habits. They were given articles to read which contained a known number of facts in each story. After the story each student listed as many facts as he/she could recall. The following data was recorded. 
Definitions:
Premature Ejaculation
A condition where a man ejaculates sooner than he or his partner would like during sexual activity, often leading to distress.
Injectable Medication
Drugs that are administered through injections directly into the body tissues, often used for rapid effect or when oral administration is not feasible.
Penile Prosthesis
A medical device implanted into the penis to provide an erection for men who cannot achieve one naturally.
Microsurgery
A precise and detailed surgical procedure that requires the use of a microscope to repair or reconnect tiny structures.
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