MEASURES OF CENTRAL TENDENCY

What is the mode?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

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The number of pages that Carolyn wrote in her journal each day from Monday to Friday is shown below: 
9, 8, 12, 6, 10
What is the mean number of pages she wrote per day?

• 5
• 6
• 9
• 11

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What is the mean?

• The value that occurs the most often in a data set
• The middle number in an ordered set of data
• The sum of all the numbers in a data set divided by the size
• The sum of the between the greatest and the least elements, divided by two

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What is the Mode?
  22,7,22,1,7,18,18,16,6,6,7

• 7
• 18
• 21
• 6

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What is the Median?
8,13,2,4,48

• 8
• 48
• 2
• 9

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To find the average of a set of numbers, add up all the items and divide by...

• 2
• The minimum
• The maximum
• The number of items

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Which is the number that appears the MOST often?

• mean
• median
• mode
• range

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If you have two numbers in the middle, you should

• add them together and divide by two
• find the number in between the two
• find the mean of the two numbers
• all of these

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A data set can have more than one mode

• True
• False

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The salary of the employees in the office were $15,000; $18,000; $16,000; $14,000; $90,000; and $17,000.  What is the best measure of the central tendency of the salaries?

• Mean
• Median
• Mode
• Range

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