Given that for the three samples, the value of R bar is .66 and value of d2 corresponding tothree is1.128, what is the estimated standard deviation?

Given that for the three samples, the value of R bar is .66 and value

1.	Given that for the three samples, the value of R bar is .66 and value of d2 corresponding tothree is1.128, what is the estimated standard deviation?
A.	.43
B.	.67
C.	.58
D.	.75
Answer» D. .75

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Given that for the three samples, the value of R bar is .66 and value of d2 corresponding tothree is1.128, what is the estimated standard deviation?

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