Remember: The median is the middle number once they are in order. The mean is the fair share.
The median in bigger sets
1
Each dot is one kid. What is the median number of pets?
2
The table shows how many kids have each number of pets. There are 15 kids. What is the median number of pets?
3
Number the steps to find the median of 8, 2, 11, 5, 9 and 4.
Write the median, 6.5
Find the two middle numbers, 5 and 8
Put them in order: 2, 4, 5, 8, 9, 11
Find halfway between them: add and halve
4
Circle every set of numbers whose median is 5.
2, 5, 95, 6, 71, 3, 5, 7, 94, 5, 5, 81, 2, 7, 9
The mean: the fair share
5
What is the mean of this data? It is not a whole number.
6
The mean of five numbers is 8. Four of them are shown. What is the fifth?
7
Which set of numbers has a mean of 6?
5, 6, 83, 5, 72, 6, 104, 7, 8
8
Four towers have 3, 9, 5 and 7 blocks. They are shared so every tower is the same height. How tall is each tower?
9
Sensei ran 5 laps. The table shows his time for each lap in seconds. What is the mean time?
Stretch
10
The data 3, 4, 5, 6 and 7 has a mean of 5 and a median of 5. Add the number 50. The mean goes up much more than the median does.
TrueFalse
11
Look at the two sets. Which sentence is true?
Set X has the bigger median and the bigger meanSet X has the bigger median, but Set Y has the bigger meanSet Y has the bigger median, but Set X has the bigger meanSet Y has the bigger median and the bigger mean
12
Mia's mean score on 5 quizzes is 82. Four scores are shown. Write how you find the fifth score, and what it is.
Scan the code at the top to mark this sheet on screenTake a photo of your answers or type them. It is marked for you automatically, and your score is kept.