Suppose 100 users of a social networking site are chosen for a sample, but only 25 respond. What is this an example of?

A. Response bias
B. Nonselection bias
O C. Selection bias
D. Nonresponse bias

i think its d

Step-by-step explanation:

C

Step-by-step explanation:

d

step-by-step explanation:

d

80° is the measure of gh

step-by-step explanation:

circle f is congruent to circle j

we have two circle with center f and j.

both circles are congruent. the radius of the circle would be equal.

see the attachment for the circle.

we are given ∠efd ≅ ∠gjh

therefore, arc (ed) = arc (gh)     (∴ circle f is congruent to circle j)

but ∠dfe=80°=arc (ed)

therefore, arc (gh) = 80°

thus, 80° is the measure of gh