Mean
What is Mean
The mean is the average in a data set.
Numbers that appear the most.
Ex. in 5,6,7,8,7 Seven appears the most. if it were 5,6,7,8,10 there wouldn't be a mode due to the numbers not repeating at all.
What is Median?
The Middle Number
Ex.
5,7,9,2,5
The Median would be 5.
What is Range?
Ex. 4,6,9,10
10-4=6
6 is the range.
1
1.
Ex. The Mean of 1,3,5 would be 3
What are the types of modes?
No mode - Example - 1,6,8,9,11
One Mode - Example - 1,1,6,8,9,11
Multiple Modes - Example - 1,1,6,8,8,9,11
What is the median of
6,5,10,8,9,21,19
The Median is 9.
A Number that is much greater/smaller than the rest of the data set.
7
7.
What is the mean of 6,8,21,24
14. (14.75)
What is the mode here?
81,92,11,102
None, there isn't a mode
How would you find the median of
17,4,8,9,10,5,4,7
1. Arrange the numbers from least to greatest
2. Find the number that has the same amount of numbers to its left and right
3. If there are 2 middle numbers, add them together, then divide by 2.
What is the outlier here?
4,6,83,6,9
83 is the outlier.
What is the Range and outlier here?
67,38101,19287,982714,84375,1297834,96717
Outlier - 67
Range -1297767
What is the mean of 1,2,3,5
2. (2.75)
What is the mode here? How many modes?
11,11,21,11,71,18
11, there is one mode.
What is the median of
1,7,81,99,101
The Median is 90.
What is the range here?
9,8,7,8,10,20
The range is 11.
Find the outlier.
409, 828, 199, 888, 840
199.
What is the mean of 78,96,99,102,111
97.2
How many modes are there? What Numbers are they?
21,96,121,36,61,71,34,46,36,81,44,46,96
There are 3 modes, 36,96, and 46.
True or false, can there be no median?
False, there is always a median in a set of numbers.
Where is the outlier here?
77,41,61,81,79,74,68
41 would be the outlier here.
Find the mean, mode, number of modes, and median of the numbers below.
61,101,788,102,61,91,96,71,71,61
Mean - 141.2
Mode - 71, 61 (Two Modes)
Median - 81