Median, Mode, and Outliers - Scholastic

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Jul 15, 2010 - Wild West! I'm Sheriff. Duck Holliday, and I need your ... slobbery dog in the West! This line plot shows
Statistics

Outlaws and Outliers

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What to Do Use the instructions in

Median, Mode, and Outliers

to answer the questions.

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Someone’s stealing horseshoes—right off the horses in town! It’s Wyatt Slurp, the most slobbery dog in the West! This line plot shows how many shoes were stolen at different times in the afternoon.

Outlaws and Outliers

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elcome to Toomsbone, the wildest town in the Wild West! I’m Sheriff Duck Holliday, and I need your help. Bulldog McDraw and the Growl Gang are making trouble. I’m counting on you to catch the bad guys. Y’all ready to be my deputies? You’ll need to know median, mode, and outliers. Ready? Let’s go get ’em!

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Day Day Day Day Day Day Day 1 2 3 4 5 6 7

A. Median:

supermath Thanks to you, we caught McDraw and the whole Growl Gang! Six members of the gang were given 20 days in jail. Three members got 25 days. Five got 30 days. And McDraw himself got 50 days! On separate paper, draw a line plot to show how many days in jail the members of the gang were given. Then write the median, mode, and outlier.

B. Mode:

A. Median:

C. Is there an outlier? If so,

B. Mode:

what is it?

D. We want to catch McDraw

what is it?

when he is stealing the most crayons. What would be the best day to wait outside the store? Why?

C. Outlier: —By Carli Entin

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Kitty the Kid is behind the Not-So-Great Train Robbery. She stole toy trains from different Toomsbone toy stores! The line plot shows how many trains she stole from each store.

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A. Median: B. Mode: C. Is there an outlier? If so, what is it?

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Show your work here for supermath:

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C. Is there an outlier? If so,

✔ Median: The middle number in an ordered set of numbers. (If there are two middle numbers, add them and divide by two to get the median.) ✔ Mode: The number in a set that appears most often. There can be more than one mode. ✔ Outlier: A number that is very far from the other numbers in a set. There won’t always be an outlier. ✔ To find the median, mode, and outlier of a set, you can make a line plot. Example: What is the median, mode, and outlier for this set: 10, 20, 10, 15, 25, 15, 25, 55, and 10? x x x x x x x x x 10 15 20 25 30 35 40 45 50 55

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B. Mode:

Median, Mode, and Outliers

✔ To find the median, count the X’s, starting at the left. The median is the middle number. There are 9 numbers in the set in the line plot above so the middle number is the fifth number. Median = 15. ✔ The number 10 has the most X’s. Mode = 10. ✔ The outlier is 55—it is far from the other numbers.

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A. Median:

ILLUSTRATIONS BY DARYLL COLLINS

Track down bad guys using median, mode, and outliers!

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Bulldog McDraw draws pictures of things he wants to steal. That’s why he steals so many crayons! The line plot shows how many crayons he stole each day of last week. (Sunday = 1, Monday = 2, and so on.) x x x x x x x x x x x x x x x

Tip: Zoom in for easy reading!

October 2010

7/15/10 12:09:17 PM

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