Lemma
MediumNormal distribution
OpenStax, Introductory Statistics 2e §6.1 The Standard Normal Distribution · Exercise 34 · Statistics · Normal distribution

The Standard Normal Distribution · Exercise 34

Suppose X ~ N(15, 3). Between what x values does 68.27% of the data lie? The range of x values is centered at the mean of the distribution (i.e., 15).

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

~8 minWritten answer · compare with the solution

OpenStax, Introductory Statistics 2e · §6.1 The Standard Normal Distribution · Exercise 34

Stuck? A gentle nudge

No hints for this one.

Something off?
Workspace
Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.