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

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

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !