This work sample illustrates a standardsetting
performance for the following parts of the standards:

a 
Statistics
and Probability Concepts: Collect and organize data to answer
a question. 
b 
Statistics
and Probability Concepts: Display data. 
c 
Statistics
and Probability Concepts: Make statements and draw simple conclusions
based on data. 
a 
Mathematical
Communication: Use appropriate mathematical terms, vocabulary,
and language. 

a
Statistics and Probability Concepts: The
student collects and organizes data to answer a question….
The student began with the question of how tall her classmates were,
and collected and organized data to answer this question.
b
Statistics and Probability Concepts:
The student displays data in line plots….

c
Statistics and Probability Concepts: The
student makes statements and draws simple conclusions based on data;
that is, the student:
• reads data in line plots….
• compares data in order to make true statements, e.g., “seven
plants grew at least 5 cm.”
The student
made true statements about the range, “bumps,” “holes,”
outlier, and median.
• identifies and uses the mode necessary
for making true statements, e.g., “more people chose red.”
• makes true statements based on a simple
concept of average (median and mean), for a small sample size and
where the situation is made evident with concrete materials or clear
representations.
Note: The
median is incorrect because the student omitted one height measurement.
The revision
provides further evidence of the student’s understanding.
a
Mathematical Communication: The student uses
appropriate mathematical terms, vocabulary, and language, based
on prior conceptual work.
Appropriate
use of mathematical terms and vocabulary is evident in these parts
of the work particularly, and is supported by evidence throughout
the work.



The line plot is incorrect since the values should
be placed at equal intervals.
The student gave the correct median for the students in the
class. However, the student incorrectly stated that the median
is 57 .
The correct median is 57 .
Since the last value of the line plot is below the rest of the
line plot, the student may have forgotten the last value (the
teacher’s height) when computing the median. 
