Lemma
MediumDescribing data
OpenStax, Introductory Statistics 2e §2.6 Skewness and the Mean, Median, and Mode · Exercise 21 · Statistics · Describing data

Skewness and the Mean, Median, and Mode · Exercise 21

The median age of the U.S. population in 1980 was 30.0 years. In 1991, the median age was 33.1 years.

(a) What does it mean for the median age to rise?
(b) Give two reasons why the median age could rise.
(c) For the median age to rise, is the actual number of children less in 1991 than it was in 1980? Why or why not?

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 · §2.6 Skewness and the Mean, Median, and Mode · Exercise 21

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.