Which of the following can be used to show a cause-and-effect relationship between two variables?

a) a census

b) an experiment

c) an observational study

d) a sample survey

e) a cross-sectional survey

all it means is function 3

no association

step-by-step explanation:

if you have eyes and you can use them efficiently you can see that it just looks like random dots like do a line of best fit and like they're so spread out it's such a weak association you might as well consider it nonexistent

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.