Chapters · 2 of 9

About 14 min · Lesson and activity

Chapter 2 of 90 complete

Choose the Right Population and Denominator

State what the number is about, what it leaves out, and which way that bends the answer.

See the situation

Start with the situation below. Next, we will work through an example together before you try the activity.

Elena · Reporting lead

The case

One question, four correct answers

A denominator reflects the question's eligible population and observation window. Show the records that establish it.

Out of everything qualified: Includes records with no chance yet
Out of everything now closed: Excludes what is still working
Out of everything actually worked: Measures effort, not the process
Out of everything past the window: Excludes only what genuinely had no chance
How far apart they are: Far enough to change the decision

Your task

Choose a population rule from the dropdown. Compare the included records, booking count, and rate.

Need a little guidance?

You’re done when: Your population matches the staffing question. You can explain what the separate missing-booking example would change.

You should be able to inspect the records behind a rate.

Need a reminder? Reopen the worked example

Watch one example first

Six requests are eligible and past the observation window; three have confirmed bookings. The rate is 3/6 = 50%. A newly qualified request has not had the full window, so it is disclosed separately.

Why this follows from the evidence

The numerator counts the named outcome within the denominator. Unworked but eligible requests stay included; immature requests should not be scored before they have the stated chance to respond.

GTM Lab

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Case evidence

One question, four correct answers

Out of everything qualified: Includes records with no chance yet
Out of everything now closed: Excludes what is still working
Out of everything actually worked: Measures effort, not the process
Out of everything past the window: Excludes only what genuinely had no chance
How far apart they are: Far enough to change the decision

Four denominators, four correct answers, far enough apart to change the decision. Pick the one that fits the decision you named, then be honest about the gap.

Check the case below to save your activity result and this chapter’s prepared example plan section. You can inspect that template in the saved plan above; no live records are changed.

Inspect the prepared example

See how the denominator changes

Choose a population rule and compare the records that count. Keep eligible unworked requests in the staffing report; wait until their response window has passed.

Staffing question

How many qualified requests were eligible for a response after the service window, and how many reached a booked conversation?

Choose a population rule. The marks, numerator, denominator, and reasons below all update from the same eight example records.

Population basis

The report population, one example record at a timeOne mark per supplied example record. Filled = counted; outlined = included, not counted; dashed = excluded.

3 of 6 included records (50%)

Request 201: Included, not counted. Qualified, past the stated window, and not yet worked. It remains in the staffing denominator.
Request 202: Included, not counted. A separate booking ledger confirms an eligible booking absent from this report source.
Request 203: Included and counted. A qualifying booking appears in the reporting source.
Request 204: Included and counted. A second qualifying booking appears in the reporting source.
Request 205: Included and counted. Still inside the observation window. Excluding it from a mature-rate denominator avoids counting an immature case as a miss.
Request 206: Included, not counted. Qualified but still inside the observation window; its outcome is not mature.
Request 207: Excluded. The stated eligibility rule excludes this record from the qualified population.
Test request 208: Excluded. Tagged test data is excluded from this reporting population.

Observed in this reporting source

3 of 6

eligible records

Source-reported rate

50%

for the selected population

How should non-results be handled?What about eligible requests nobody has worked yet?

When is the source rate a lower bound in this example?

A separate source confirms 1 eligible booking missing from this numerator. With eligibility verified and the same population of 6, adding that event changes the comparison to 4 of 6. This is a comparison for the example, not a change to the saved report.

Restoring this data activity…

Optional: compare alternative reasoning

The case tool above saves your result and completes this activity. These comparisons are extra practice; they do not change your saved plan.

Work the case · 0 of 3 sections drafted

Pick the denominator, then say what it leaves out

Compare these alternatives one section at a time. Check a choice to see its consequence; the draft summary below keeps the proposed changes together.

Step 1 of 3

Which denominator fits the decision at stake?

Everything qualified in the quarter and now closed.Everything qualified in the quarter.Everything the team actually worked.Everything qualified in the quarter that is now past the SLA window.

This is a proposed draft until the chapter check runs. Selecting a choice alone does not complete the chapter.

4b · Proposed

Metric definition draft

Metric definition draft · current draftCompare the original state with the proposed change. This preview does not change live records.

Metric definition draft · current draft
Item	Before	Proposed	Why
Which denominator fits the decision at stake?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.
In this case, eligible bookings are confirmed missing from the numerator while the denominator is fixed. What do you disclose?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.
The largest category is "did not reach a conversation". What do you do with it?	No saved change in this exercise draft	Not drafted yet	Choose a proposal to see what it would add to the draft.

Which denominator fits the decision at stake?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.
In this case, eligible bookings are confirmed missing from the numerator while the denominator is fixed. What do you disclose?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.
The largest category is "did not reach a conversation". What do you do with it?: BeforeNo saved change in this exercise draft; ProposedNot drafted yet; WhyChoose a proposal to see what it would add to the draft.

A choice appears here as a proposal, not as evidence that a live system changed.

Your place saves as you go.

Chapter 2 of 90 complete