Determine whether the statement is true or false. If it is false, explain why or give an example that shows it is false.
?
Data that are modeled by 
have a positive correlation.
?
A. True
B. False; The data modeled by have a negative correlation.
Answer: A
Mathematics
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Find the standard deviation for the given data. Round your final answer to one more decimal place than that used for the observations.The normal monthly precipitation (in inches) for August is listed for 12 different U.S. cities.
A. 12.03 in. B. 1.05 in. C. 1.00 in. D. 1.09 in.
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Find the exact value of the expression. Do not use a calculator.sin 135° - sin 270°
A. 
B. 2
C. 
D. 
Mathematics
Solve the formula for the indicated letter.
Mathematics
A ladder 25 feet long forms an angle 65 degrees with the ground. How far up the building does the ladder touch?
What will be an ideal response?
Mathematics