An economist would like to estimate the proportion of young adults who have college debt. An online survey invites young adults to share information about their level of college debt. Which of the following describes the survey design and potential bias? This is voluntary response and is likely to overestimate the proportion of young adults with college debt.
This is voluntary response and is likely representative of the proportion of young adults with college debt.
This is voluntary response and is likely to underestimate the proportion of young adults with college debt.
This is a convenience sample and is likely to overestimate the proportion of young adults with college debt.

answer: a

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4

wow ok so the answer is 1k or just k

because of combining like terms xd