MA.912.DP.1.2 · Expressions, Functions, and Data Analysis

Interpreting Data Distributions and Their Displays: Sample Algebra 1 EOC Questions

Students read histograms, box plots, dot plots, bar charts, and circle graphs, decide whether the data is numerical or categorical and univariate or bivariate, and interpret center, spread, and shape in context. This benchmark also carries the work of choosing an appropriate measure of center.

How the Algebra 1 EOC tests this benchmark

Every interpretation item on the EOC includes a graphical display, and any statistic the question needs is either given or readable straight off the display, so nothing has to be computed from raw data. A choice between mean and median never turns on the categorical versus numerical distinction alone; it turns on skew and outliers.

Skills students need

Read center and spread from a display
Decide between mean and median for a skewed distribution
Classify data as numerical or categorical, univariate or bivariate
Interpret shape and outliers in context

Try 6 real MA.912.DP.1.2 questions

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Question 1 of 6

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Question 1EasyEquation Editor

Commute Times

The box plot summarizes the commute times of the employees at one office. What is the first quartile of the commute times? Enter the value as an integer.

Enter the number only. Do not include units like $, %, or ft²

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Question 2EasyMultiple Choice

Ages at the Meeting

Stem	Leaves
1	2 5 8
2	1 3 4 7
3	0 2 6
4	5

The stem-and-leaf plot shows the ages of the people at a community meeting, where

1 \mid 2

means

12

years. What is the age of the youngest person?

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Question 5HardMatching

Match each purpose to the display that serves it best.

Pick one match in each row, then check.

	A.Line graph	B.Box plot	C.Segmented bar chart
Spread of the middle half of a numerical data set
Breakdown of favorite sport by gender
One team's points in each of $10$ games, in order

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