Researchers are investigating whether exposure to violent video games is increases aggressive behavior.  However, they fail to control for prior history of aggressive behavior.  In this study, prior history of aggressive behavior is a(n) ___________.

A bag contains 3 red balls, 5 blue balls, and 2 green balls. What is the probability of drawing two green balls in a row (assuming you do NOT replace the first ball before drawing the second)?

In a study on student satisfaction at a university, the researcher randomly selects 10 students from each of the 5 academic departments (e.g., Engineering, Arts, Sciences). This type of sampling is known as:

A researcher claims that 75% of all students in a school district prefer online learning. The 75% value is based on a survey of 200 students. Which of the following is true about this 75%?

Coulomb’s law: In the figure, a small spherical insulator of mass 6.00 × 10-2 kg and charge +0.400 μC is hung by a thin wire of negligible mass. A charge of -0.220 μC is held 0.290 m away from the sphere and directly to the right of it, so the wire makes an angle θ with the vertical, as shown. What is the angle θ? (k = 1/4πε0 = 8.99 × 109 N ∙ m2/C2)

Two events A and B are described as follows:Event A: It rains today.Event B: It does not rain today.Which of the following best describes the relationship between events A and B?

Find the square root if it is a real number, or state that the expression is not a real number. If not real, enter DNE. a.    = [eight] b. 

Must show work on scrap paper.  Label the question number. Simplify the radical expression. Assume that all variables represent positive real numbers. Equation editor found above the answer box under

Simplify the following expression.   Write the exact value using positive exponents and the approximation to 4 decimal places. 9-3/2 Exact value: [iugig] (Hint: answer is a fraction) Approximation to 3 decimal places: [app]

THE WRITING ASSIGNMENT GUIDELINES for the Reflection Essay: The essay should be submitted in MLA or APA format; see the MLA tab or the APA tab in A Writer’s Reference.  The essay length should be two to three pages (Not including the Works Cited page (if you write this in MLA) or Title page and the References page (if you write this in APA). No less than two full pages of text. This essay should have at least five full paragraphs: an introduction, at least three body paragraphs in support of your thesis, and a conclusion. A paragraph must have at least five sentences. Note that this assignment serves as your final for the course, so no late submissions are accepted.    WRITING PROMPT: Watch the clip below of Angela Duckworth’s TED Talk concerning “Grit” Link to “Grit: The Power of Passion and Perseverance” TED Talk by Angela Duckworth To develop your thesis, consider: Do you have “grit” as described by Angela Duckworth? What could you do to get “grit” if you don’t have it?  How has your grit, or lack thereof, affected your college experience so far (or how will it affect your college experience)? How has grit helped or hurt you in life outside of school? Apply Duckworth’s definition of grit to your experiences, shedding light on how grit or a lack thereof affected you.    ESSAY WRITING NOTES:  Analyze Angela Duckworth’s TED Talk and conclude what you have seen Make connections between the Ted Talk and yourself, or other texts, and the world Write subjectively (from your point of view so that you may use words like “my,” “I,” “me” etc.) and help identify your interests.