Solve the problem.Find the least squares line for the points 
, 
A. y = -2 + 3x
B. y = -3 + 4x
C. y = - 
+ 4x
D. y = -5 + 5x
Answer: D
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Solve the problem.It has been observed in one country, that 59 out of every 100 births is a baby with brown eyes. In 660 births how many brown eyed babies would you expect?
A. 389 B. 330 C. 59 D. 384
Find the probability.In a certain college, 33% of the physics majors are ethnic minorities. A random sample of 10 physics majors is chosen. Find the probability that exactly 4 are not ethnic minorities. Round to the nearest ten-thousandth.
A. 0.0467 B. 0.2253 C. 0.2564 D. 0.0547
Ln x = 4.2. Find x.
What will be an ideal response?
Solve the problem.A tunnel is in the shape of a parabola. The maximum height is 29 m and it is 19 m wide at the base. What is the vertical clearance 2 m from the edge of the tunnel? 
A. 18.1 m B. 10.9 m C. 27.6 m D. 1.4 m