Lemma
MediumSampling distributions
OpenStax, Statistics §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 13 · Statistics · Sampling distributions

The Central Limit Theorem for Sums (Optional) · Exercise 13

A researcher measures the amount of sugar in several cans of the same type of soda. The mean is 39.01 with a standard deviation of 0.5. The researcher randomly selects a sample of 100.

Find the sum with a z-score of –2.5.

~8 minWritten answer · check your work with Lemma

OpenStax, Statistics · §7.2 The Central Limit Theorem for Sums (Optional) · Exercise 13

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.