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3D Printing Club: Fit, Order, and Color

Find compound-event probabilities using connector dimensions, model print orders, and filament spool selections.

Grade 7MathInteractive · Printable

Aligned to7.SP.C.8.a

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What’s included

Single worksheet
Auto-graded online
1 Common Core standard
Printable answer key
14 questions
Classroom-ready

Details

Format: Interactive · Printable
Grade: Grade 7
Subject: Math
Question types: Fill in the blank, Multiple choice, Circle the answer, Short answer

About this worksheet

What students practice

Students find compound-event probabilities by counting favorable outcomes in equally likely sample spaces.
Students distinguish ordered outcomes and adjust sample spaces when selection rules change.

How to use

Have students mark favorable outcomes before writing each probability. Discuss how changing the available spools changes the denominator in the final question.

Curriculum

Common Core standard covered

7.SP.C.8.a

Understand the probability of a compound event as the fraction of outcomes in the sample space where the event happens.

Preview

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Name Date

3D Printing Club: Fit, Order, and Color

Count the outcomes that meet each design requirement.

Connector Fit

A design simulator independently chooses a pin diameter from 3, 4, or 5 mm and a socket diameter from 4, 5, 6, or 7 mm. Each choice is equally likely, so all 12 ordered pairs below are equally likely. Write probabilities as fractions.