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Work · Guided lesson

Define a market without counting everyone

About 12 minutes · 4 reading + 8 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

A fictional market-research file with population/geography definitions, public-data source cards, a bounded customer-count range, contrary evidence and a demand-test question.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Define the target unit, behavior, geography and time period using the supplied cards.
  • Create source cards and reject mismatched geographic, time or mixed-unit comparisons.
  • Reproduce200 target people,180–220 population bounds and18–55 hypothetical participation.
  • Separate invented inputs, assumptions, official methods and unobserved demand.
  • Include free alternatives, limited comments and an unsent bounded next validation question.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Counts use compatible units and explicitly nonoverlapping geography.
  • Source cards distinguish observation period, publication date and unsupported trends.
  • Scenario arithmetic is reproducible and is not mislabeled as observed demand or a formal confidence interval.
  • The next-step recommendation includes contrary evidence and requires no external sale or contact.
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Before you begin

The idea in everyday life

Fictional service: a printed route-planning organizer for adult bicycle commuters in two nonoverlapping reachable zones, A and B. The organizer is a document product, not an approved cycling route, safety certification or promise of safer travel. All numbers below are invented teaching inputs, not Census findings about an actual town. Required work uses these supplied cards on paper or in a local document; no riding, customer contact, payment or external account is required. The initial offer serves adult bicycle commuters in A/B. Adults who do not commute by bicycle are outside the initial definition.

The idea

A market-size question needs a unit, eligibility definition, geography and time boundary. A large population total is not automatically the number of people who could use this particular offer.

Follow along

Define a market without counting everyone — supplied practice

A market-size question needs a unit, eligibility definition, geography and time boundary. A large population total is not automatically the number of people who could use this particular offer.

Fictional service: a printed route-planning organizer for adult bicycle commuters in two nonoverlapping reachable zones, A and B. The organizer is a document product, not an approved cycling route, safety certification or promise of safer travel. All numbers below are invented teaching inputs, not Census findings about an actual town. Required work uses these supplied cards on paper or in a local document; no riding, customer contact, payment or external account is required. The initial offer serves adult bicycle commuters in A/B. Adults who do not commute by bicycle are outside the initial definition.

Fictional source card M1: same five-year observation period and definitions

Paste at A1.

AZoneBAdultsCCommutersDBicycle commutersESupplied low/high bicycle-count scenario
A1000600120105–135
B8004008075–85

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  1. 1. Write the target definition

    Specify adult bicycle commuters in reachable zones A and B, counted as people.

    You should see: The definition names behavior, age boundary, geography and unit.

    This prevents silently turning every resident or business into a customer.

  2. 2. Inspect the supplied populations

    Distinguish adults1800, commuters1000 and bicycle commuters200 across the two zones.

    You should see: 1000+800=1800 adults;600+400=1000 commuters;120+80=200 target people.

    Nested populations cannot all be added as if they were separate buyers.

  3. 3. Check geographic overlap

    Record that A and B are explicitly nonoverlapping in M1; only then add their matching target counts.

    You should see: Target point estimate200 people, without double counting.

    Adjacent labels alone would not establish nonoverlap.

  4. 4. Separate eligibility from purchase

    Label200 as a supplied target-population estimate, not200 paying customers.

    You should see: The size card retains a purchase-unknown statement.

    Being in the defined population does not show interest, willingness or ability to buy.

Now change one thing

A changed offer serves zone B only under the same bicycle-commuter definition. How many target people does M1 estimate?

Your work

What to finish

A target definition and labeled population card with a 200-person point estimate.

Common mistake

Watch for this

Adding adults, commuters and bicycle commuters into a single inflated market total.

How can I tell I understand it?

Eligible population is not reported as observed purchases.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1For the initial fictional organizer offer, which M1 total matches the target definition?
2Why may the M1 target counts for A and B be added here?
3Which label accurately describes the initial200-person result?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
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Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

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Sources and further reading

Explore the references behind this lesson.

SBA — market research and competitive analysis
Source & access notes · checked 2026-10-01

This official reference supports the mapped concepts. The supplied exercise inputs and operating rules are original fictional practice, not universal legal requirements or qualification evidence.

Access: redirected current official planning page; market-research section read on 2026-10-01; external resources are optional.

Reuse: Original fictional teaching and practice; source concepts paraphrased and linked, with no copied provider exercises.

U.S. Census Bureau — business-data measures and uses
Source & access notes · checked 2026-10-01

This official reference supports the mapped concepts. The supplied exercise inputs and operating rules are original fictional practice, not universal legal requirements or qualification evidence.

Access: readable official market-data guidance on 2026-10-01; external resources are optional.

Reuse: Original fictional teaching and practice; source concepts paraphrased and linked, with no copied provider exercises.

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