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How Do You Find the Mode of a Data Set When There is More Than One Mode?
Find the mode of this data set: 63, 62, 66, 67, 63, 70, 67, 68, 61
Summary
- The mode is the number that occurs most frequently in a set of numbers
- It will make it much easier to find the mode of this set if we first order it from least to greatest
- After writing a number from the set, check it off the list so we know that we've accounted for it
- Now we can count how many times each number occurs to find the mode
- Both 63 and 67 occur more times than the other numbers
- Since they occur the same number of times, we have two modes

Notes
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- If our numbers are in order, then numbers that are the same will be next to each other
- That will make it really easy to find the mode!
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- Remember, the mode is the number that occurs the most often in the data set
- If we count how many times each number occurs, then we'll be able to tell which one occurs the most!
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- 61, 62, 66, 68, and 70 each occur once
- 63 and 67 both occur twice in the data set
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- Remember, the mode is the number that occurs the most often in the data set
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- 63 and 67 both appear twice in the data set, while all of the other numbers only appear once
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- 63 and 67 both appear more than any of the other numbers
- Since they both appear the same number of times, they are both the modes!
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- If ALL the numbers were the same there would be no mode, since no number would occur more frequently than the others
- But here since there are two numbers that occur more often than all the others, there are two modes