The symbol for the standard error of the mean is 
.
Definitions:
Lifespan
The length of time a person lives, from birth to death, including various factors that influence longevity.
Baby Boomer
A demographic group referring to people born during the post-World War II baby boom approximately between 1946 and 1964.
Culturally Sensitive
An awareness and incorporation of cultural differences and similarities into healthcare practices and policies.
Gerontological Unit
A specialized hospital or health care wing dedicated to the care and treatment of older adults, focusing on geriatric medicine.
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