Learning outcomes
Explain the different ways to calculate averages
Recognise the difference between Mean Mode Median and Range
What do you already know about Mean Mode Median and Range
when do we use averages!
What is the correct explanation for choosing the mean as an average to calculate?
I chose the mean because it is the average.
I chose the mean because I know how to do it.
I chose the mean because it shows the range.
I chose the mean because it includes all of the data.
What is the correct explanation for choosing the median as an average?
It is the middle number
I chose the median as it excludes extreme values.
It is easy to find.
You put them in order and pick out the middle number.
What is the correct explanation for choosing the mode as an average?
I picked the mode as it is most common.
I picked the mode as it gives the most common figure.
The mode is the most frequently occurring figure.
The mode is easy.
If the range of running times of runners in a marathon was 2 hours, 40 minutes, which is the best explanation?
The range is the highest take away the lowest.
The range was good at 2 hours 40 minutes.
The running times varied a lot.
The range was consistent.
what is the mean of 190, 160, 250
170
210
200
190
What is the mean of? 1, 2, 4, 5, 8
3
4
6
8
What is the median of? 14,14,15,18,18,19,21
14
16
17
18
What is the range of? 30, 57, 89, 95, 108, 110
80
92
89
95
What is the median of 34, 68, 4, 10, 9
10
36
4
59
The median of? 45, 32, 35, 29, 28
35
32
33.5
34
What is the range of? 45, 34, 12, 76, 56,
11
12
22
64
What is the mode of? 1, 2, 1, 4, 2, 2, 5
1
2
3
4
What is the mode of? 567, 600, 356, 600, 400, 500.
478
500
400
600
What is the mean of, 0, 0, 1, 2, 2,
What is the range of? 12, 57, 60, 34, 812, 715.
What is the mean of? 0, 5000.
What is the mode of 66, 78, 65, 78, 77, 64, 87, 78
What is the mean of 40, 40, 100.
How did you do