Remember: The median is the middle number once they are in order. The mean is the fair share.
The median: the middle number
1
Each dot is one kid. What is the median number of stickers? Answer:
2
Five kids counted their stickers. The numbers are not in order. What is the median? Put them in order first. Answer:
3
There are two middle numbers here. The median is halfway between them. What is the median? Answer:
4
The median of 9, 2, 7, 4, 5 is 7.
TrueFalse
5
Number the steps to find the median.
The number left in the middle is the median
Cross off one from each end, again and again
Put the numbers in order, smallest to biggest
The mean: the fair share
6
Three plates hold cookies as shown. Share them out so every plate has the same number. How many cookies on each plate? Answer:
7
The mean is the fair share. What is the mean of this data? Answer:
8
Plates have 2, 6 and 4 cookies. Which picture shows the plates after the cookies are shared fairly?
ABC
9
These four numbers have a mean that is not a whole number. What is the mean? Answer:
10
Join each word to what it means.
1median
2mean
3data
Athe numbers we collect
Bthe middle number, in order
Cthe fair share of the data
Stretch
11
Zoe's mean score on 4 quizzes is 80. Her first three scores are shown. What was her fourth score? Answer:
12
In this data, is the mean or the median bigger? Write how you know.
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