Measures of 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

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

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.

Your math grades are 90, 85, 58, 90, 80, 100, and 90.  Which grade is the outlier?

• 90

• 58

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

33, 25, 42, 25, 31, 37, 46, 29, 38
What is the third quartile of the data?

• 37

• 38

• 40

• 46

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