Answer:
1. 5.25 - 5= 0.25
2. 5.5 - 4 = 1.5
Step-by-step explanation:
Find the mean:
- Add all values
- Divide by how many numbers there are
Last week:
2 + 3 + 3 + 3 + 4 + 4 + 7 + 7 + 7 + 7 + 8 + 8 = 63
63/12 = 5.25
This week:
2 + 2 + 2 + 3 + 3 + 4 + 4 + 6 + 8 + 8 + 9 + 9 = 60
60/12 = 5
Last week mean - This week mean:
Mean of strikes last week - Mean of strikes this week =
5.25 - 5 = 0.25
Find the Median:
- Put all values in order
- Find the middle value (If there are two numbers in the middle then find the mean of the two values)
Last week:
2 3 3 3 4 4 7 7 7 7 8 8
4 + 7 = 11
11/ 2 = 5.5
This week:
2 2 2 3 3 4 4 6 8 8 9 9
4 + 4 = 8
8/2 = 4
Last week median - this week median:
5.5 - 4 = 1.5
