Math Antics - Mean, Median, Mode

If you measured the weight of each of your pets, what would your likely means of measurement be?

• ruler

• scale

• thermometer

What is another word for MEAN ?

• Mode

• Median

• Average

Will all the numbers in your data set be the same as your mean?

• Yep, that is why it is your mean.

• No, some could be, but others could be smaller or larger.

What is the procedure for finding the mean of a data set?

• add the numbers in the data set then divide by the number of data values there are

• add the numbers of the data set then divide by the middle value

Find the mean of this family's ages. Remember to add all the values and divide by the number of ages in this set.

• 222

• 6

• 37

• 34

• 40

What do you have to do FIRST when finding the median?

• Put them in order from least to greatest

• Add the numbers together

How do you find the median of a data set?

• Add the data values and divide by the amount of data values

• Put the numbers in order from least to greatest first, then cross out the smallest and larger numbers until you find the number in the middle

• Subtract the smallest from the largest number

What would the median be for this data set?

• 2

• 2 - 3

• 2.5

• 3

Why is he dividing by 2?

• 2 is the first number that he is adding

• There are 2 data values that he's finding the mean of

• Because 3 - 1 = 2

What is the MODE of this data set?

1, 2, 2, 3, 3, 3

• 1

• 2

• 3

• 2 and 3