How does a production possibility chart assist in outlining opportunity cost? It compares profit potential of one product to another.
It compares production cost of one product to another.
It compares production numbers of one product to another.
It compares consumer demand of one product to another.

answer; i do believe that the correct answer is (punch card ballots);

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

where are the choices