Lemma
EasyDiscrete distributions
OpenStax, Introductory Statistics 2e §4.6 Poisson Distribution · Try It 2 · Probability · Discrete distributions

Poisson Distribution · Try It 2

An electronics store expects to have ten returns per day on average. The manager wants to know the probability of the store getting fewer than eight returns on any given day. State the probability question mathematically.

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · check your work with Lemma

OpenStax, Introductory Statistics 2e · §4.6 Poisson Distribution · Try It 2

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Attach photos of your pages (up to 3) or one PDF — or check what you typed above. Lemma reads the work and verifies the reasoning, not just the answer.

Your first check today doesn't need an account.

Your photos and PDFs are read once and not stored — only the transcription is kept.