The percentages of police officers who are women are listed in the table for various city populations.

City Populatio (in thousands)	City Population Used to Represent City Population (in thousands)	Percent
0-9.999	5	8.3
10-24.999	17.5	7.5
25-49.999	37.5	8.5
50-99.999	75	9.4
100-249.999	175	11.7
250 or more	300	17

Source: FBI Uniform Crime Report

Let $\displaystyle {f{{\left({n}\right)}}}$ be the percentage of police officers who are women in cities with populations of $\displaystyle {n}$ thousand. A model of the situation is $\displaystyle {f{{\left({n}\right)}}}={0.00006}{n}^{{2}}+{0.012}{n}+{7.884}$.

Use a graphing calculator to draw the graph of the model and, in the same viewing window, the scattergram of the data. Does the model fit the data well? Glen Ellyn, Illinois, has a population of 135.55 thousand. Estimate the percentage of police officers in Glen Ellyn who are women.

Round to 1 decimal place.

Find $\displaystyle {t}$ when $\displaystyle {f{{\left({t}\right)}}}={10}$.

$\displaystyle {t}=$ Round each to 1 decimal place.

What does it mean in this situation? (Answer this question on scratch paper prior to looking at the choices.)

Select an answer Wrong answer. 10% of police officers are women in cities with populations of about -312.8 thousand (model break down) and about 112.8 thousand