Introduction to Mean Median and Mode

Which number is NOT the mean, median, or mode of this data set?

• 7

• 6

• 3

• 5

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 median of the data set?

• 6

• 7

• 5.5

• 9

Another name for the "mean"

• Middle number

• Average

• Number that repeats the most

• Rude

What is the mean of the data set:
8.9, 9.4, 8.6, 9.1

• 8.5

• 8.9

• 9

• 9.1

How do you find the average of a data set?

• Add them all up and divide by how many numbers there are

• List in order from least to greatest

• Add the numbers and subtract the largest number

• Find the repeated numbers

Find the mean of the data set:
34, 57, 58, 56, 21

• 45.2

• 56

• none

• 48

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

Calculate the mean.

• 8

• 4

• 7

• 22

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

• 11

• 12

• 13

• 17