Definitions
Mode & Median
Mean
Graphs and Plots
100
What is the meaning of mode?
Mode is the number that appears the most
100
What is the mode of the following numbers:
5, 2, 2, 2, 3, 8, 42, 42, 33
2
100
5, 14, 12, 9, 10, 4
9
100
What is the mode of this line plot?
2
200
How do we find the median?
1. Order numbers from least to greatest
2. Cross out opposite ends until you get to the center
200
What is the median of the following numbers:
56, 78, 71, 68, 69, 55, 39, 26, 21
56
200
72, 56, 81, 77, 69
71
200
What is the balance point of this data? Round to the nearest hundredth.
2.42
300
What is an outlier?
A number that is beyond the data set (beyond the range with the other numbers in the set)
300
What is the mode of 7, 2, 5, 1, 5, 7, 10,
5 & 7
300
84, 92, 79, 86, 82, 93
86
300
Study Guide Question #1
The line plot. What numbers make up that data set?
(6, 6, 6, 7, 7, 8, 8, 8, 9, 10, 10, 11)
400
Define the balance point.
The balance point is the mean or average.
400
What is the median of 12, 21, 13, 8, 4, 22, 7, 5
10
400
28, 19, 42, 31, 65, 72, 41, 38
42
400
Study Guide Question #2
What number best represents the balance point for the data?
25
500
Describe how we find the average(mean) of a data set.
Adding up all the numbers and then dividing by the number of numbers you have.
500
Which two central tendencies have the same value? 28, 91, 72, 19, 34, 41, 42, 38, 42, 31, 22, 45, 65, 55, 50
Mode and Median = 42
500
30, 1, 22, 8, 15, 29, 2, 20, 13, 6
14.6
500
How does the outlier in this data change the median if we remove it?
9, 0, 1, 0, 2, 6, 12, 96
The median decreases from 4 to 2.