TABLE 2-7 A Sample of 200 Students at a Big-Ten University Was

question 33

Multiple Choice

TABLE 2-7
A sample of 200 students at a Big-Ten university was taken after the midterm to ask them whether they went bar hopping the weekend before the midterm or spent the weekend studying, and whether they did well or poorly on the midterm. The following table contains the result.

-Referring to Table 2-7, ________ percent of the students in the sample spent the weekend studying and did well on the midterm.

• A) 40
• B) 50
• C) 72.72
• D) 80

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Definitions:

Quadratic Form

An expression in which the highest power of variables is squared, typically written in the form ax^2 + bx + c.

Square Root Property

A principle stating that for any positive number x, there exists a positive and negative value whose square equals x.

Square Root Property

Refers to a principle used to solve quadratic equations, stating that if \( x^2 = a \), then \( x \) is equal to both the positive and negative square root of \( a \).

Complex Solutions

Solutions to equations that include imaginary numbers, typically used when solving polynomial equations that do not have real-number solutions.