how-to-normalize-data

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Interactive video lesson plan for: How to Normalize Data

Activity overview:

Nutella Bread Recipe: https://www.youtube.com/watch?v=8eHPkpCGdEY

Watch more Data Management & Storage videos: http://www.howcast.com/videos/359111-How-to-Normalize-Data

When you normalize a set of data, you map the original data range into another scale. The steps for normalizing a data set are described here.

Step 1: Identify the minimum and maximum values
Identify the smallest and largest numbers in the original data set and represent them with the variables A and B, respectively.

Tip
If you are normalizing a set of data where the smallest number is 25 and the largest number is 75, set capital A to equal 25 and capital B to equal 75.

Step 2: Identify the minimum and maximum values of the normalized scale
Identify the smallest and largest numbers in the normalized scale and represent them by the variables lowercase a and lowercase b, respectively.

Tip
If you are normalizing to the range between 1 and 10, set a will equal 1 and b will equal 10.

Step 3: Calculate normalized value
Calculate the normalized value of any number x in the original data set using the equation a plus (x minus A) times (b minus a) divided by (B minus A).

Did You Know?
"Normalize" comes from the Latin word for a carpenter's square.

Tagged under: technology,tech,computers,software,databases,data,normalizing,scales,numbers,values

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