What is the standard deviation of the following probability distribution?  Round your answer to the tenths place.  x            P(x) 0            0.10 2            0.05 4            0.30 6            0.35 8            0.20

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A: We have given that  Sample size n =4220 Sample proportion p^=30%=0.30 Margin of error =E =2.4%=0.024

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Q: etermine the point estimate of the population​ proportion, the margin of error for the following con...

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A: x       0.5       1.75       2       2.25       2.25       2.5       2.75       3.25...