You take a random sample of high school students to estimate the proportion of high school students that fall asleep while talking on the phone to a friend with a 90% confidence interval . If you want the margin of error to be no more than .01, you will need a minimum sample size of approximately if you suspect p -hat to be 60 percent

1.4

2.3

step-by-step explanation:

the formula for the constant of variation is

y= kx

divide each side by x

y/x =kx/x

y/x =k

we know a and y

1.   y/x = k

4/1 =4

check the other values to make sure they are the same

8/2 = 4   12/3 =4   and 16/4 =4  

the constant of variation is 4

2.   y/x = k

3/1 =3

check the other values to make sure they are the same

6/2 = 3   9/3 =3   and 12/4 =3  

the constant of variation is 3

ddd

step-by-step explanation:

the answer to this is a. a^2 + b^2 = c^2