Which of the following is a piece of free software that produces simulations of the results obtained from computing the means and proportions of several samples drawn from a population?
a. Sampling Sim
b. Fathom
c. Geogebra
d. None of the above
Ans: a
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Find the derivative of y with respect to the independent variable.y =log8
A. 
B. 
(sec ? csc ? - ln 5 -1)
C. 
(cot ? - tan ? - ln 5 -1)
D. e8(cos ? - sin ? - e?5?)
Provide an appropriate response.Solve the following quadratic equation: x2 = 25
Fill in the blank(s) with the appropriate word(s).
Without graphing, describe the shape of the graph of the function and complete the ordered pairs 
and 
f(x) = 4-x
A. The graph lies above the x-axis, falls from left to right, with the negative 
as a horizontal asymptote; 
B. The graph lies above the x-axis, falls from right to left, with the positive 
as a horizontal asymptote; 
C. The graph lies above the x-axis, falls from left to right, with the positive 
as a horizontal asymptote; 
D. The graph lies above the x-axis, falls from right to left, with the negative 
as a horizontal asymptote; 
The first several terms of a sequence are given. Find the indicated partial sum.81, -243, 729, -2187, . . . ; S4
A. 4941 B. - 1134 C. -2187 D. - 1620