Lemma
EasyNormal distribution
OpenStax, Introductory Statistics 2e §6.2 Using the Normal Distribution · Example 9 · Statistics · Normal distribution

Using the Normal Distribution · Example 9

a. Find the probability that a randomly selected mandarin orange from this farm has a diameter larger than 6.0 cm. Sketch the graph.
b. The middle 20% of mandarin oranges from this farm have diameters between ______ and ______.
c. Find the 90^th percentile for the diameters of mandarin oranges, and interpret it in a complete sentence.

This exercise has fill-in blanks from its source book and no answer key.

~5 minWritten answer · check your work with Lemma

OpenStax, Introductory Statistics 2e · §6.2 Using the Normal Distribution · Example 9

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.