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POE Unit 4 • Lesson 4.4

Frequency Distributions and Histograms

Focus question: How can a frequency distribution reveal the center, spread, and unusual results in repeated test data?

Mission Briefing

Today’s Plan

A focused sequence that advances the mission-performance investigation.

Opening promptConcept modelGuided practiceInteractive applicationEvidence checkExit ticket
Lesson Targets

What You Will Be Able to Do

Learning Target

I can sort numerical mission data into intervals and describe the shape of a histogram.

Evidence

Frequency table and histogram

Success Looks Like

Every result appears in exactly one bin, frequencies total the number of trials, and the interpretation matches the graph.

Activity Flow

How the Lesson Moves

Each step builds the data, motion, or testing reasoning required for today’s deliverable.

1. Choose intervals

Create equal-width bins that cover the full data range.

2. Count frequencies

Place each result in one and only one interval.

3. Interpret the shape

Describe clustering, spread, and possible outliers.

Lesson Interactive

Complete the Frequency Distribution

Apply the lesson concept to a mission-performance scenario. Use the feedback to correct your reasoning before completing the main deliverable.

Landing Distances (cm)

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Distance interval (cm)Frequency
Count every result exactly once. The five frequencies should add to 10.
Today’s Work

Main Deliverable

Frequency table and histogram

Create one focused engineering artifact that demonstrates today’s learning.

  • Complete a frequency table whose counts equal the total number of trials.
  • Create a labeled histogram and write one observation about its distribution.
Exit Ticket

Mission Debrief

1

State the most important data-analysis or motion concept from today in your own words.

2

Name the measurement, calculation, graph feature, or test decision that supports your conclusion.

3

Identify one uncertainty, limitation, or next test that would strengthen the evidence.

Resources

Lesson Resources

Presentation

Lesson 4.4 PowerPoint

Use the presentation to review the lesson concepts, examples, and activity directions.

Course Hub

Principles of Engineering

Return to the POE course hub for units, resources, certifications, and course information.

Unit Investigation

Mission Data Investigation

Use the integrated investigation context when connecting trial design, statistics, kinematics, graphs, and recommendations.