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Phone Data Passes: Simulate Before Choosing

Students design and run a phone-data simulation, estimate compound-event probabilities, and compare two daily data passes.

Grade 7MathInteractive · Printable

Aligned to7.SP.C.8.c

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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, Short answer

About this worksheet

What students practice

Students design a random-digit simulation for three independent data-use sessions.
Students run simulated trials and estimate probabilities using relative frequencies.
Students use simulated data totals to compare the costs of two phone data passes.

How to use

Have students work through the shared model and random-digit trials, then compare their estimates. Ask them to justify how each complete trial represents one day.

Curriculum

Common Core standard covered

7.SP.C.8.c

Design and run a simulation to estimate the probability of a compound event.

Preview

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Name Date

Phone Data Passes: Simulate Before Choosing

Use simulated data use to compare two daily phone plans.

Build the Model

Use this simplified phone-data model throughout the worksheet. Each day has three independent sessions. All charges shown are for one day.

Each session uses 0 GB with probability 50%, 1 GB with probability 30%, or 2 GB with probability 20%. Model a session with one random digit from 0–9: digits 0–4 mean 0 GB, digits 5–7 mean 1 GB, and digits 8–9 mean 2 GB. Each digit is equally likely, and each new digit is independent.