alandrabell4808 alandrabell4808

15-01-2020
Mathematics

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state police believe that 70 of the drivers traveling on a major interstate highway what is the mean and standard deviation

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fahadisahadam fahadisahadam

16-01-2020

Answer:0.051

Step-by-step explanation:

p=70%=0.70

The standard deviation of the sampling distribution of the sample proportion is the square root of the product of p and q divided by the sample size n:

=squareroot(pq/n)

=squareroot(p(1-p)/n)

=squareroot(0.70(1-0.70)/80)

=0.051

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