Effects of Mean Median and Mode

Dr. Dre is a dentist. He needs to report on the average (Mean) number of cavities that his patients have.

1, 0, 1, 5, 0, 3, 4. What is the average number of cavities?

• 14

• 2

• 7

• 1

What is the median of this data set?
3 , 17 , 17 , 11 , 8 , 13 , 5 , 18

• 11

• 12

• 13

• 17

Find the median:
5, 6, 3, 9, 0, 4, 1, 2, 7

• 4

• 4.1

• 5

• 4.5

Find the median:
3, 5, 7, 4, 3, 1

• 3 and 4

• There isn't one

• 3.5

• 3

Find the median:
3.8, 4.2, 4.0, 4.2, 4.2

• 4.2

• 3.8

• 4.0

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.

12,10,10,10,13,12,11,13,10

• 10

• 11

• 12

• 13

Anna read 20 pages on Monday, 30 pages on Tuesday, and 32 pages of her book on Wednesday. Which answer choice is closest to the MEAN number of pages that she read over the 3 days?

• 20 pages

• 27 pages

• 30 pages

• 32 pages

For the data set below, which of the following measures is the greatest?

(20, 25, 30, 31, 32, 45, 45, 80)

Mean = _________, Median = _________ Mode = __________

• Mean

• Median

• Mode

• None of the above

The mode score on the 6th 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.

What is the definition of median?

• Add the numbers together and then divide by the number in the set.

• The difference between the largest and smallest number.

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

• The number that appears most often.