If sampling error is SE = 2 P(1-P) where p equals the proportion saying yon, then when you quadruple the size of the sample, the sampling error for
the population

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

so then what are you asking?

step-by-step explanation:

one fourth of 9% = 2.25%

gavin is correct in saying : the equivalent quarterly interest rate would be

2.25%.