The new computer your business bought lists a mean time between failures of 1 year, with a standard deviation of 3 months. Eight months after a repair, it breaks down again. Is this surprising? (Assume that the times between failures are normally distributed.)
What will be an ideal response?
Since the time between failures wasn't 1 standard deviation away from the mean, this is unusual.
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Solve the problem.Find the volume of the region bounded by the coordinate planes, the parabolic cylinder 
, and the plane 
.
A. 432 B. 162 C. 144 D. 324
The equation of an ellipse is given. Put the equation in standard form and sketch the ellipse.49x2 + 4y2 = 196
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Provide an appropriate response.In a large casino, the house wins on its blackjack games with a probability of 50.7%. Which of the following events is the most unlikely? A: You win at a single game. B: You come out ahead after playing forty times. C: You win at a single game given that you have just won ten games in a row. D: You win at a single game given that you have just lost ten games in a row.
A. C B. A C. D D. B
Graph the equation.y = - 
x + 3
A. 
B. 
C. 
D. 