Identify a method whereby a random sample can be selected from the population.The population is the 335 faculty members at the local college. A union organizer wants to investigate how the faculty members feel about joining the union. He will ask 45 randomly selected faculty members how they feel about the union.
A. Visit the offices of the faculty and choose the first 45 faculty members found there.
B. Visit the college and choose every 5th person leaving the faculty members' gym until a sample of 45 is obtained.
C. Assign each faculty member a 3-digit number between 1 and 335. Use a table of random numbers to generate 45 random numbers between 1 and 335. Choose the faculty members corresponding to those numbers.
Answer: C
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The following table shows the speed S of a car, in miles per hour, as a function of the time t, in seconds, since observation of the car began. t 15 30 45 60 S 60.00 65.00 65.00 70.00? ? A: Find the equation of the regression line.B: Plot the data along with the regression line.C: Explain in practical terms the meaning of the slope of the regression line.D: How fast would you expect this car to be traveling after 71 seconds?
What will be an ideal response?
Simplify.
A. 
B. 
C. 3x + 5y
D. 5x + 3y
Solve the system of equations graphically. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent of dependent.x = -6y = 7
A. No solution
B. (-6, 7)
C. (7, -6)
D. (0.5, 0.5)
Add or subtract.(8m2n - 6mn + 4mn2) - (4m2n + 4mn - 4mn2)
A. 4m4n2 - 10mn + 8m2n4 B. 4m2n - 2 C. 4m4n2 - 10m2n2 + 8m2n4 D. 4m2n - 10mn + 8mn2