Vocabulary
Mean- The sum of the data values divided by the number of data items
Median- The middle value of an odd number of data items, arranged in order. For an even number of
data items, the median is the mean of the two middle values.
Mode- The value, or values that occur most often in a data set. When all the values are the same there
is no mode.
Range- The difference between the greatest value and the least value in a data set.
Outlier- A data point that is a much greater, or lesser value than the rest of the data set.
Data Set- A group of data points.
Data Point- each value (number) in the data set.
Examples
find the mean, median, mode, range, and outliers:
10.4, 13.9, 12.3, 14.2, 5.7, 10.4, 15.3, 10.5, 13.9
Mean: 11.844444...
Median: 10.5
Mode: 10.4, 13.9
Range: 11.6
Outliers: 5.7
Median: 10.5
Mode: 10.4, 13.9
Range: 11.6
Outliers: 5.7
find the mean:
96, 62, 34, 09, 220, 17, 212, 78
91
find the median:
0.1, 0.4, 0.8, 0.14, 0.23
0.8
find the mode:
62, 43, 41, 56, 76, 23, 62, 90, 84, 65, 56
62, 56
find the range 64, 90, 87, 42, 12, 234, 548, 5
543
find the outlier(s):
98, 102, 104, 76, 96, 57, 97, 99
76, 52
Anissa went to a dance competition and she wanted to know the average(mean) score for an 11 year old, here they are:
8.9, 6.7, 5.8, 9.0, 10.0, 7.6, and 8.7
Anissa's average (mean) score was an 8.1
Ariana has been playing 10 games, find her outlier(s) of all the games, here they are:
20, 18, 17, 19, 8, 19, 18, 20, 16, 19, 6
Ariana's outlier(s) are 8, and 6
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