A Professor Would Like to Assign Grades Such That 5

question 59

Multiple Choice

A professor would like to assign grades such that 5% of students receive As. If the exam average is 62 with a standard deviation of 13, what grade should be the cutoff for an A? (Round your answer.)

• A) 80
• B) 83
• C) 90
• D) 93

---

Definitions:

Species-typical Behavior

Actions and patterns of behavior that are characteristic of a particular species, often instinctual.

Intelligence

The ability to learn, understand, and apply knowledge, reason logically, plan effectively, comprehend complex ideas, and learn from experience.

Homo Habilis

is an extinct species of early human that lived approximately 2.4 to 1.4 million years ago, known for its use of stone tools.

Homo Erectus

An extinct species of hominid that lived from roughly 1.9 million to about 140,000 years ago, known for being one of the first hominins to have a stature and gait similar to that of modern humans.