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What is the standard deviation of the humidity observations in Concrete.jmp? a. 51.01 b. 50.65 c. 0.3397 d. 6.289145

What is the standard deviation of the humidity observations in Concrete.jmp?

	a.	51.01
	b.	50.65
	c.	0.3397
	d.	6.289145

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