Consider the following table.

Defects in batch	Probability
2	0.21
3	0.37
4	0.22
5	0.10
6	0.07
7	0.03

Find the standard deviation of this variable

Homework Help:

3VA. Calculating the mean, variance, and standard deviation of discrete variables(Links to an external site.) Links to an external site. (4:35)

3DG. Variance and Standard Deviation of discrete variables(Links to an external site.) Links to an external site.(DOCX)

Group of answer choices

3.54

1.28

1.65

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