Appropriate Measures of Central Tendency

Calculate the median for this set of data
22, 32, 44, 11, 5, 28, 19, 30.

• Median=22

• Median=24.5

• Median=25

• Median=28

Calculate the median for this set of data.
100, 55, 98, 140, 101, 98, 53, 57, 70

• 101

• 100

• 98.5

• 98

Which set of data has a higher mean?
BOB:  1.3, 3.1, 4.1, 2.5, 2.2,  2.8
MEGAN: 5.5, 1.1, 1.2, 2.4, 3.8, 2.0, 1.9

• BOB > MEGAN

• BOB < MEGAN

• BOB=MEGAN

The mode score on the 9th grade math test was 94! Which of these interpretations must be correct?

• 99 was the highest score on the test.

• More students received a 94 than any other score

• No student scored below a 50

• A score of 91 was slightly below average.

Madison has test scores of 93, 82, 86, and 75. What must she score on her next test to have an average of 86?

• 94

• 90

• 86

• 88

To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• Mean

• Median

• Mode

• Range

The number of cookies that were made at a bakery for each of seven days is shown:
108, 96, 96, 84, 108, 240, and 84
The best measure of center for this data set is the-

• median because 240 is much higher than the other numbers in the data set

• median because all of the values are close to one another in value 

• mean because 240 is much higher than the other numbers in the data set 

• mean because all of the values are close to one another in value

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

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

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