12. The name of each contestant is written on a separate card, the cards are placed in a bag, and three names are picked from the bag. What of type
sampling is used? *
OA) Random
OB) Cluster
C) Convenience
OD) Stratified
E) Systematic

Random

Step-by-step explanation:

what is the model?

step-by-step explanation:

a.) list the factors of 40.

1/2/4/5/8/10/20/40

b.) list the factors of 40 that represent the number of cans that could be on each shelf.

5

c.) how many different arrangements of cans are possible?

just one because if you put more on one shelf you will go way over 40 and the cabinet will probably break.

d.) what are the possible arrangements of the cans?

put 5 cans on each self to reach 40 cans in total.

e.) which arrangement uses all the shelves?

5 because you can put 5 cans on each shelf, and since there are 8 shelfs you are equally going to get 40 cans.