A paint sprayer coats a metal surface with a layer of paint between 0.43 and 1.23 millimeters thick.The thickness of the coat of paint is approximately uniformly distributed. What is the standard deviation of the thickness of the coat of paint on the metal surface?
A).83
B).23
C).48
D).40

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The Answer of A paint sprayer coats a metal surface with a layer of paint between 0.43 and 1.23 millimeters thick.The thickness of the coat of paint is approximately uniformly distributed. What is the standard deviation of the thickness of the coat of paint on the metal surface?
A).83
B).23
C).48
D).40

A Paint Sprayer Coats a Metal Surface with a Layer