A Report in the Des Moines Register Presented on the Percentages

question 30

Essay

A report in the Des Moines Register presented on the percentages of students who
qualify for Free/Reduced lunch programs in the elementary schools in Des Moines,
Iowa. These data appear in the table below. $\begin{array}{|l|c|l|c|l|c|l|c|}\hline \text { School } & \% \text { F/R } & \text { School } & \% \text { F/R } & \text { School } & \% \text { F/R } & \text { School } & \text { \% F/R } \\\hline \text { Adams } & 64 & \text { Hanawalt } & 14 & \text { McKee } & 55 & \text { Phillips } & 27 \\\begin{array}{l}\text { Capitol } \\\text { View }\end{array} & 78 & \text { Hillis } & 35 & \text { McKinley } & 78 & \begin{array}{l}\text { Pleasant } \\\text { Hill }\end{array} & 17 \\\text { Cattell } & 55 & \text { Howe } & 49 & \text { Mitchell } & 64 & \begin{array}{l}\text { River } \\\text { Woods }\end{array} & 48 \\\text { Douglas } & 45 & \text { Hubbell } & 31 & \text { Monroe } & 52 & \text { Stowe } & 56 \\\text { Downtown } & 8 & \text { Jackson } & 60 & \text { Moore } & 42 & \text { Studebaker } & 30 \\\text { Edmunds } & 83 & \text { Jefferson } & 5 & \text { Morris } & 54 & \text { Wallace } & 80 \\\text { Findley } & 64 & \text { King } & 71 & \text { Moulton } & 88 & \text { Willard } & 82 \\\text { Garton } & 53 & \text { Longfellow } & 84 & \text { Oak Park } & 59 & \text { Windson } & 37 \\\text { Granger } & 52 & \text { Lovejoy } & 66 & \begin{array}{l}\text { Park } \\\text { Avenue }\end{array} & 38 & \text { Woodlawn } & 40\\\text { Greenwood } & 38 & \text { Madison } & 58 & \text { Perkins } & 54 & \text { Wright } & 29\\\hline\end{array}$ (a) Sketch a histogram for these data, using the following class intervals:
20 t
0 t $$\begin{array} { l } 0 \text { to } < 20 \\20 \text { to } < 40 \text {, etc. }\end{array}$$ (b) Describe the distribution of Free/Reduced eligibility percents, and note any
unusual features.

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Definitions:

Pre-Tax Cash Flow

The amount of cash that a company generates before accounting for taxes, used in evaluating its financial performance.

WACC

Weighted Average Cost of Capital; a calculation of a firm's cost of capital where each category of capital is proportionately weighted.

Tax Rate

The percentage at which an individual or corporation is taxed, which can vary based on income level, type of income, and jurisdiction.

Decision Tree

A form of scenario analysis in which different actions are taken in different scenarios.