The regression equation y = 4x + 20 approximates the number of people attending a picnic, y,
given the number of flyers used to advertise it, x.
which statement is true?
o
for every extra flyer used in advertising, the attendance increases by 4 people.
o
for every extra flyer used in advertising, the attendance increases by 20 people.
for every extra person attending a picnic, the number of flyers used to advertise it
increases by 4.
for every extra person attending a picnic, the number of flyers used to advertise it
increases by 20.