Lemma
MediumSampling distributions
OpenStax, Statistics §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 30 · Statistics · Sampling distributions

The Central Limit Theorem for Sums (Optional) · Exercise 30

An unkwon distribution has a mean of 100, a standard deviation of 100, and a sample size of 100. Let X = one object of interest.

What is P(Σx > 9000)?

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

~8 minWritten answer · check your work with Lemma

OpenStax, Statistics · §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 30

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.