Math 1 · Unit 12 · Lesson 2 · part 4 of 4
Practice Problems
Try them, get help one step at a time, then print how it went.
Practice: try it, then get help one step at a time
Mean and median by hand on small sets, the class periods before and after, and choosing the center that fits the shape. Hint gives a nudge, Show next step shows one worked step at a time, Reveal answer checks, and Hide help / start over clears the card.
My results
Finished the practice? Print a page that shows each question, what you typed or chose, the correct answer, and how it went. Good for showing a teacher or keeping in a folder.
Exit ticket
On paper or an index card. Use the math word and the plain-English word.
- Find the mean and median of 4, 7, 8, 9, 12.
- Eleven class periods have a mean of about 58.2 and a median of 60. A 100 minute period is added. Which changes, and which stays?
- Why is the median resistant?
- The songs data is skewed right. Which center should you report, and why?
Check your exit ticket
- Mean 8; median 8.
- The mean rises to about 61.7; the median stays at 60.
- It only uses the order of the values, not how far out the end values are.
- The median (12): the mean (about 15.8) was pulled up by the 88.