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

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Definitions:

Reduced Rainfall

A decrease in the amount of precipitation received over a specific period, often linked to climate change, weather patterns, or geographical variations.

Homo Naledi

A species of hominin discovered in South Africa known for its unique mix of primitive and modern traits, adding complexity to human evolution.

H. Floresiensis

A species of small-statured hominins, known as "Hobbits", that lived on the island of Flores, Indonesia, until about 50,000 years ago.

Brain Evolution

The series of developmental and evolutionary changes in the brain that occur over time in various species.