California State Standards Alignment
Statistics & Probability — High School
CCSS.MATH.CONTENT.HSS.ID.A.1
Represent data with plots on the real number line (dot plots, histograms, and box plots).
CCSS.MATH.CONTENT.HSS.ID.A.2
Use statistics appropriate to the shape of the data distribution to compare center (median, mean) and spread (interquartile range and standard deviation).
CCSS.MATH.CONTENT.HSS.ID.A.3
Interpret differences in shape, center, and spread in the context of the data sets, accounting for possible effects of extreme data points (outliers).
These standards are part of the California Common Core State Standards for Mathematics and apply across high school courses, including Geometry.
The above standards are assessed on CAASPP through the following mathematics assessment targets:
Claim 1: Concepts and Procedures
Target C: Interpret results in the context of a situation.
Claim 2: Problem Solving
Target A: Apply mathematics to solve problems arising in everyday life, society, and the workplace.
Claim 3: Communicating Reasoning
Target E: Distinguish correct logic or reasoning from that which is flawed, and explain the flaw.
Target F: Base arguments on concrete referents such as objects, drawings, diagrams, and data representations.
Purpose of the Statistical Survey Project
This project is designed to assess students’ ability to:
Represent and analyze real data
Compare distributions using measures of center and variability
Interpret statistical results in context
Communicate mathematical reasoning clearly
These skills align directly with California’s high school statistics standards and with the CAASPP assessment framework, which emphasizes reasoning, interpretation, and data analysis rather than isolated computation.
On the CAASPP students may be asked the following:
About Mean, Median, Mode, Range
Interpret or compare averages
Decide which measure of center is most appropriate
Explain how an outlier affects the mean vs. the median
Use summary statistics to justify a conclusion
In regards to standard deviation students are expected to
Interpret what standard deviation says about variability
Compare distributions using standard deviation
Reason about spread in context
Box plots frequently appear on CAASPP because they assess reasoning, not just calculation.
Read and interpret box plots
Compare distributions using:
Median
Interquartile range (IQR)
Overall spread
Identify skewness and outliers
Use box plots to support claims or comparisons