Mean
What operations are used to find the mean?
Addition and Division
Find the range in this set of data: 24,12,14,22
12
A dot plot shows how many pets students have. What could one dot above "3" mean?
A person has 3 pets
What do you do to find the median if there is not one middle number?
Add the two numbers together and divide by 2
What does mode mean?
Most Often
Find the Mean: 5, 2, 8
5
Find the range in this set of data: 56,67,49,37
300
Why might a teacher make a dot plot of test scores?
Example: To look to see how students are doing
What is the median of this data set
4,11, 2, 9, 13
9
What is mode in the data set
18, 21, 32, 45, 18, 48, 18
18
Find the mean: 300, 500, 200, 600
400
What is the IQR? Min:2 Q1:4 Q2:6 Q3:8 Max: 12
Q3 - Q1. 8-4 = 4
If 5 people chose "Red" as their favorite color, how many dots go above "Red"?
5
What is the median of these numbers:
10,11,11,13,15,16,16,16,17,18,19
16
What is the mode of these numbers:
1,1,2,3,4,4,4,5,5,6,7,8,8,9,10
4
Find the mean: 45.3, 66.5, 79.43, 52.9, 39.7, 66.5, 56.54, 47.22
Round your answer to the nearest tenth.
56.8
Find the range in this set of data: 100,200,503,4
499
What if you have a BIG MAD? What does it tell you?
Big spread of data
What is the median of this data set
45,32, 24,8, 34, 21, 14
24
What is the mode of the data set
100, 43,100, 102, 87, 100
100
The mean of four numbers is 5. If three of the numbers are 6, 4, and 8, what is the fourth number?
2
What is the IQR? Min:3 Q1:17 Q2:19 Q3:24 Max: 36
24 - 17 = 7
How do you find the MAD?
Find the mean
Find the distance
Find the mean of the distances
What is the median of the data set
12, 29, 8,27,11, 21, 8, 11, 12, 21,27,29
16.5
What is the mode of the data
3, 3, 1, 5,3, 4, 2, 3
3