Obtain the population standard deviation, ?, for the given data. Assume that the data represent population data. Round your final answer to one more decimal place than that used for the observations.The weekly salaries (in dollars) of seven government workers are listed below 560?702?463?648?683?519?653
A. 90.6
B. 7031.3
C. 83.9
D. 858.3
Answer: C
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A medical insurance policy requires Ana to pay the first $100 of her hospital expense. The insurance company will then pay 70% of the remaining expense. Ana is expecting a short surgical stay in the hospital, for which she estimates the total bill to be about $3,900. How much will Ana's portion of the bill amount to?
A. $980 B. $1120 C. $1240 D. $1680 E. $2010
Find the polar equation of the given rectangular equation.x2 = 9y
A. r = 9 csc ? cot ?
B. r = 
C. r = 9 sec ? tan ?
D. r = 
Solve the system in terms of the arbitrary variable listed.x; x + y - 2z = 83x + z = - 6
A. {(x, -7x - 4, -3x - 6)} B. {(x, 7x - 4, -3x - 6)} C. {(x, 7x + 4, -3x - 6)} D. {(x, -7x + 4, -3x - 6)}
Solve the problem.A box has a base whose length is twice its width. The volume of the box is 7000 cubic inches.a) Find a function for the surface area of the box.b) What are the dimensions of the box that minimizes surface area?
What will be an ideal response?