The Scholastic Aptitude Test (SAT) Is a Standardized Test for College

question 37

Essay

The Scholastic Aptitude Test (SAT) is a standardized test for college admissions in the United States. In 1996, the average combined SAT score (math + verbal) for students in the United States was 1013, and 41% of all high school graduates took this test. Suppose that 500 students are randomly selected throughout the United States. Which of the following random variables has an approximate binomial distribution? In each case, provide a justification for your answer.
a. the number of students who took the SAT
b. the scores of the 500 students on the SAT
c. the number of students who scored above average on the SAT
d. the amount of time it took each student to complete the SAT

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Definitions:

Mean Arterial Blood Pressure

Mean arterial blood pressure is an average blood pressure in an individual’s arteries during one cardiac cycle, important for assessing the flow of blood to organs.

Atrial Natriuretic Factor

A hormone produced by the atria of the heart that regulates blood pressure by reducing water, sodium, and adipose loads on the circulatory system.

Capillary Exchange

The process by which nutrients, gases, and wastes are exchanged between blood and tissues through capillary walls.

Precapillary Sphincter

A ring-like muscle at the entrance of capillaries that regulates blood flow into the capillary.