When an answer varies — and how to describe the middle of the data.
Read this first — it covers the idea in plain language with a worked example.
A statistical question expects answers that vary. "How tall are the kids in our class?" is statistical because heights differ. "How tall is the door?" is not — it has one answer.
Three numbers describe the center of a data set. Mean is the average. Median is the middle value when the data is sorted. Mode is the value that appears most often.
Find the mean of 4, 7, 7, 9, 12.
Tip
To find the median, always sort the numbers first, then locate the middle.
Watch the main video, then check the second take if you want another explanation.
Learn which questions expect many different answers.
Watch on YouTubeTry a worksheet or work through some problems before the quiz.
A couple of questions to make sure this topic stuck. Retake as many times as you want.
Statistical Questions & Center
Find the median of: 4, 7, 2, 9, 5
