Use the following table to complete the following problems. The table shows the percentage of Americans under age 18 at time [math].

[math]
A) Put the correct number in the Answer box. Which one of the following are the correct units for [math].

1) people / year
2) % / year
3) [math] / year
4) year / %



B) Use the 6B answer boxes below to fill in the values for [math] for the corresponding years (to three decimal places).

C) Pick the correct graph for P and P' (Put the correct number in the C answer boxes below)

1) 2) 3) 4)

D) Which of the following is a valid way to get more accurate values for [math] (put the correct number in the D answer box)
1) Find out [math] for mid Decade years
2) Eliminate every other year's data
3) Poll less people for the consensus

[math]

[math]

[math]

[math]

[math]

[math]

[math]

[math] graph)

[math] graph)

[math]