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Questions in Grade College

[Done] Alejandro surveyed his classmates to determine who has ever gone surfing and who has ever gone snowboarding. Let [tex]$A$[/tex] be the event that the person has gone surfing, and let [tex]$B$[/tex] be the event that the person has gone snowboarding. | | Has Snowboarded | Never Snowboarded | Total | | :------------- | :--------------- | :----------------- | :---- | | Has Surfed | 36 | 189 | 225 | | Never Surfed | 12 | 63 | 75 | | Total | 48 | 252 | 300 | Which statement is true about whether [tex]$A$[/tex] and [tex]$B$[/tex] are independent events? A. [tex]$A$[/tex] and [tex]$B$[/tex] are independent events because [tex]$P(A | B) = P(A) = 0.16$[/tex] B. [tex]$A$[/tex] and [tex]$B$[/tex] are independent events because [tex]$P(A | B) = P(A) = 0.75$[/tex] C. [tex]$A$[/tex] and [tex]$B$[/tex] are not independent events because [tex]$P(A | B) = 0.16$[/tex] and [tex]$P(A) = 0.75$[/tex] D. [tex]$A$[/tex] and [tex]$B$[/tex] are not independent events because [tex]$P(A \cdot A) = 0.75$[/tex] and [tex]$P(A) = 0.16$[/tex]

[Done] Consider this argument: 'The reason students have trouble finding parking spaces is because of the number of parking permits sold.' Which stock issue does this relate to? A) Blame B) Cost C) Plan

[Done] Select the correct answer. What distinguishing feature of realist literature does Mark Twain use in this excerpt from The Adventures of Huckleberry Finn? "I ain' gwyne to len' no mo' money 'dout I see security. Boun' to git yo' money back a hund'd times, de preacher says en be glad er de chanst." A. dramatic dialogue B. dialect C. an unreliable character D. setting E. undecipherable language

[Done] Divide these two fractions: [tex]$\frac{4}{3} \div \frac{5}{8}=?$[/tex]

[Done] In the following exercise, find the coordinates of the vertex for the parabola defined by the given quadratic function. [tex]$f(x)=3 x^2-18 x+2$[/tex] The vertex is $\square$ (Type an ordered pair.)

[Done] Given that [tex]$f(x)=x^2+5 x$[/tex] and [tex]$g(x)=-5 x-5$[/tex], determine each of the following. Make sure to fully simplify your answer. (a) [tex]$(f \circ g)(x)=[/tex] $\square$ (b) [tex]$(g \circ f)(x)=[/tex] $\square$ (c) [tex]$(f \circ f)(x)=[/tex] $\square$ (d) [tex]$(g \circ g)(x)=[/tex] $\square$

[Done] $r$ is inversely proportional to $\sqrt{3}$. $s$ is directly proportional to $\sqrt{t}$. Given that $r=10$ and $t=16$ when $s=49$, find a formula for $r$ in terms of $t$.

[Done] Which statement provides the complete explanation of how renewable and nonrenewable resources differ? A. They differ in the amount they are found in nature. B. They differ in the rate they are replaced. C. They differ in the available amount and rate they are used and replaced. D. They differ in the rate they are used.

[Done] Match each group to the correct property. Refer to the periodic table if you need help. alkali metals halogens noble gases solids at room temperature

[Done] The Department of Homeland Security was created to A. keep noncitizens from entering the United States. B. protect the United States from terrorist attacks. C. make US citizens more secure in their homes. D. strengthen US military presence overseas.