Topic 12 Review

Topic 12: Collect, Represent, and Analyze Data

• Line plots

• Stem and leaf plots

• Mean, Median, Mode, and Range

Line plots are a way for use to see a set of data more clearly. They make it especially easy to see the most a least common values in a set.

Line plots organize data in ascending order and show how many numbers in the data set match a value.
For example this line plot shows that 4
Crayons are 3 1/4 inches long while only 1
Crayon is 3 inches long.

Line Plots

Multiple Choice

What is the shortest length crayon?

• 2 1/2

• 3

• 2 3/4

• 3 1/2

Multiple Choice

What is the longest length crayon?

• 2 1/2

• 3

• 2 3/4

• 3 1/2

Multiple Choice

What is the mode of this data set?

• 1 1/2

• 2

• 3

• 4

In 4th grade you should be able to find the most common number (mode), the middle number (median), and the difference between the highest and loswest numbers (range).

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​Median, Mode, and Range

Range

Range just tells you how big a number set is!

To find how big a number set is you just need to the know the difference between the highest and the lowest numbers of the set.



range = highest number - lowest number

Multiple Choice

What is the range of this line plot?

• 2 1/2

• 3

• 1

• 1 1/2

Multiple Choice

What is the range of the hours spent at the gym?

• 2 because

  3 - 1 = 2

• 1 3/4 because

  3 - 1 1/4 = 1 3/4

• 3 because the numbers go from 1 to 3

• 2 because it's in the middle

Multiple Choice

What is the mode of the hours spent at the gym?

• 2

• 1 3/4

• 2 1/4

• 3

Mode

MOde sounds like MOst for a reason. 🧐🤪

Finding the mode means you're finding the most commonly used number.

Multiple Choice

What is the mode of this line plot?

• 2 3/4

• 3

• 1

• 3 1/4

Median

Med | ian

The median number is the one that is in the middle of the data set.

Fill in the Blank

The median number is in the middle withe the data is in ascending order, meaning the numbers go from the _____ to big.

Multiple Choice

What is the median number.

Hint you can write the numbers in order or you can cover or cross out the data using the exes until you find the middle number.

• 2 3/4

• 3 1/4

• 3 3/4

• 3