Measures of Central Tendency

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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In the last 5 games, Kevin Durant scored 22, 22, 18, 12, and 21 points. What is Durant's Mean (Average) score per game?

•  19 points per game
• 95 points per game
• 18.6 points per game
• 22 points per game

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What do you do if there are two numbers in "the middle" when you are finding the median?

• Pick your favorite number
• Add the two numbers in the middle & then divide by two.
• They are both the median
• None of the above

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

• 2.
• The smallest number
• The largest number
• The number of items in the set.

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What is the median?

• The number in the middle when the numbers are in order from least to greatest.

• The difference between the largest and smallest number.

• The average

• The number that appears most often.

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What is the range?

• The sum of the largest and smallest number

• The number in the middle

• The difference between the largest and smallest number

• The number that appears most often

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Find the median of the following set of numbers: 5, 10, 15, 20, 25, 30

• 22.5

• 35

• 17.5

• 12.5

Answer explanation

The median is the middle number when the numbers are arranged in ascending order. In this case, the median is 17.5, as it is the middle number in the set: 5, 10, 15, 20, 25, 30.

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Determine the range of the data set: 12, 15, 18, 21, 24, 27

• 15

• 20

• 9

• 30

Answer explanation

The range of a data set is the difference between the maximum and minimum values. In this case, the range is 27 - 12 = 15. Therefore, the correct answer is 15.

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During a week of tracking her jogging distance, Alice recorded her daily distances in miles as follows: 3, 5, 7, 9, 11. What is the median distance she jogged in a day?

• 5

• 7

• 9

• 11

Answer explanation

The median distance is the middle value when the data is arranged in ascending order. In this case, the middle value is 7, so the correct answer is 7.

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If you score 76, 85, 97, and 83 on your math tests, what would your median score be? 

• 84
• 90
• 85
• 88

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