MEAN
What do you do first when finding the mean of a data set?
Add all the numbers
What does the word median mean in math?
The middle value
What is the mode?
The number that appears most often
How do you find the range?
Largest - Smallest
You want to know which number shows up the most.
Which measure should you use?
Mode
What do you divide by when finding the mean?
The total number of data values
What must you do before finding the median?
Put the numbers in order
Find the mode: 1, 2, 2, 4, 5
2
Find the range: 2, 5, 9, 12
10
Which measure helps you understand how spread out data is?
Range
Find the mean: 4, 6, 10
6
What do you do when there are two middle numbers when finding the median?
Take the average of those two numbers.
Can a data set have more than one mode?
Yes
A data set has a minimum of 6 and a maximum of 22. What is the range?
16
You want to find the average of the data.
Which measure should you use?
Mean
Find the mean of the data set.
4, 4, 4, 4, 12
5.6
Find the median: 3, 6, 8, 10,
7
What is the mode of this data set
4.5, 3.0, 5.5, 2.5, 4.0, 3.5, 5.0
None
The range of a data set is 18. The smallest value is 7.
What could the largest value be?
25
You are comparing test scores and want a fair center when there is an outlier.
Median
The total of a data set is 50 and there are 5 numbers. What is the mean?
10
Find the median: 2, 8, 5, 9, 4
5
What is the mode of this data set
1, 20, 3, 1, 2, 3, 2
1 and 2
A data set has a minimum of 8 and a range of 15.
What is the maximum value in the data set?
23
You are finding the class’s most common shoe size.
Which measure should you use?
Mode