---
title: "7.PR.6: Simple Event Probability Models (Georgia Mathematics standard)"
code: 7.PR.6
cite_as: Georgia Standards of Excellence, Mathematics, 7.PR.6
subject: math
grades:
  - grade-7
language: en
canonical_url: https://georgiahomeroom.org/standards/code/7.PR.6
md_url: https://georgiahomeroom.org/standards/code/7.PR.6.md
alternate_language_url: https://georgiahomeroom.org/es/standards/code/7.PR.6.md
source_url: https://case.georgiastandards.org/ims/case/v1p1/CFDocuments/e9dd7229-3558-4df2-85c6-57b8938f6180
source_last_changed: 2024-10-09
data_built: 2026-09-18
publisher: Georgia Homeroom, a free public-interest project of Georgia Civic Data. Not affiliated with or endorsed by the Georgia Department of Education or any school district.
up: https://georgiahomeroom.org/standards/math/grade-7.md
index: https://georgiahomeroom.org/standards/index.md
---

# 7.PR.6: Simple Event Probability Models

Using mathematical reasoning, investigate chance processes and develop, evaluate, and use probability models to find probabilities of simple events presented in authentic situations.

- Subject: Mathematics
- Appears in: Grade 7, https://georgiahomeroom.org/standards/math/grade-7.md

## Expectations

- **7.PR.6.1**: Represent the probability of a chance event as a number between 0 and 1 that expresses the likelihood of the event occurring. Describe that a probability near 0 indicates an unlikely event, a probability around $\frac{1}{2}$ indicates an event that is neither unlikely nor likely, and a probability near 1 indicates a likely event.
- **7.PR.6.2**: Approximate the probability of a chance event by collecting data on an event and observing its long-run relative frequency will approach the theoretical probability.
- **7.PR.6.3**: Develop a probability model and use it to find probabilities of simple events. Compare experimental and theoretical probabilities of events. If the probabilities are not close, explain possible sources of the discrepancy.
- **7.PR.6.4**: Develop a uniform probability model by assigning equal probability to all outcomes and use the model to determine probabilities of events.
- **7.PR.6.5**: Develop a probability model (which may not be uniform) by observing frequencies in data generated from a chance process.
- **7.PR.6.6**: Use appropriate graphical displays and numerical summaries from data distributions with categorical or quantitative (numerical) variables as probability models to draw informal inferences about two samples or populations.

## Georgia Milestones coverage

- Mathematics Grade 7 (EOG). Probability Reasoning. Using mathematical reasoning, investigate chance processes and develop, evaluate, and use probability models to find probabilities of simple events presented in authentic situations. (about 16% of the test; 9 points)

## What mastery looks like

Georgia's Achievement Level Descriptors. The levels are cumulative: each includes the ones before it. Proficient is on grade level.

- **Beginning**: Recognize an event as likely, unlikely, or neither likely nor unlikely.
- **Developing**: Determine the probability of an event based on the likelihood of the event. Determine the probability of a chance event by using the data collected from trials of the event. Use a uniform probability model to predict the outcome of an experiment. Use a probability model to predict an outcome. Compare data from two data displays and numerical summaries.
- **Proficient**: Calculate the theoretical probability of a chance event. Compare the experimental and theoretical probabilities of events. Describe a uniform probability model that represents a realistic problem. Describe a probability model that represents a realistic problem. Use measures of central tendency and/or variability to compare data from two data displays.
- **Distinguished**: Describe situations modeled by probabilities, including making predictions based on experimental and theoretical probabilities and developing probability models.

Source: Georgia Standards of Excellence, published by the Georgia Department of Education at case.georgiastandards.org.