A Professor at a Local University Noted That the Grades

question 125

Short Answer

A professor at a local university noted that the grades of her students were normally distributed with a mean of 78 and a standard deviation of 10.
a.The professor has informed us that 16.6 percent of her students received grades of A. What is the minimum score needed to receive a grade of A?
b.If 12.1 percent of her students failed the course and received F's, what was the maximum score among those who received an F?
c.If 33 percent of the students received grades of B or better (i.e., A's and B's), what is the minimum score of those who received a B?

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Definitions:

Persian Reliefs

Sculptured artworks found in ancient Persian sites, often depicting kings, battles, and ceremonial scenes, showcasing the empire's power and religious beliefs.

Assyrian Reliefs

Ancient Mesopotamian artworks carved on stone panels, depicting Assyrian empire's power, mythology, and daily life.

Project From Surface

To extend outward or protrude from a flat base or background, often used in sculpture or architectural details.

Sumerian Votive Sculptures

Small statues created by the ancient Sumerians, often representing worshippers offering prayers or gifts to a deity.