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Understanding Mean, Median and Mode: Activity 1 of 3

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Our third tool for analyzing data is mode. The mode is the number that occurs most often in a set. The easiest way to find the mode is to:

  1. Order the numbers form least to greatest.
  2. Find the number that occurs the most often.

Here’s an example: 48, 97, 26, 48, 97, 97, 78, 34

  1. Order the numbers from least to greatest: 26, 34, 48, 48, 78, 97, 97, 97
  2. Look for the number that occurs most often.

In this set, it’s easy to see that 97 occurs three times -- more than any other number. So, 97 is the mode in this set of numbers.

Here’s another set: 3,6,8,3,6,7,1

In order from least to greatest: 1, 3, 3, 6, 6, 7, 8

Both 3 and 6 occur twice, while the other numbers occur only once. So this set has two modes: 3 and 6.

King Call Telemarketing Services pays all its telemarketers the same salary. The office manager, supervisor, and president earn more. Here are the salaries earned by the employees at King Call:

$31,000; $47,000; $31,000; $31,000; $31,000; $31,000; $68,000; $31,000; $84,000; $31,000; $31,000

What is the mode in this data set?

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