Find the standard deviation. Round to the nearest tenth.1, 3, 27, 22, 39, 44

A. 266.2
B. 24.5
C. 16.3
D. 22.7


Answer: C

Mathematics

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Provide an appropriate response. If a business sends out 2,000 brochures to a list of customers and expects to lose 350 of them to mail changes, what percent is lost?

A. 70% B. 1.2% C. 17.5% D. 5.17%

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Provide an appropriate response.32.4 cm = ? m

A. 0.324 B. 324 C. 3240 D. 3.24 E. none of the above

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Simplify the expression. Assume that all variables are positive when they appear. + 1 - 

A. 4 - 2
B. 4 - 
C. 4
D.  + 1 - 

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Simplify. 

A. - 
B.
C. - 
D.

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