Definitions
the middle number of a data set
Median
Find the mean of 3, 2, 8, 4, 3
4
Find the median: 7, 9, 13, 4, 25
9
Find the mode: 8, 5, 7, 8, 10, 8, 12
8
Find the Range: 12, 18, 23, 15, 2, 30
28
the number that appears most often in a data set.
Mode
6
Find the median: 2, 1, 2, 7, 9, 20, 4
4
Find the mode: 65, 47, 93, 100, 65
65
Find the Range: 13, 18, 13, 14, 13, 16, 14, 21, 13
8
the difference between the smallest and largest number in a data set
Range
Find the mean: 12, 9, 11, 8, 9, 12, 9
10
Find the median: 50, 276, 72, 22, 50, 71, 53, 57, 63, 60, 62,
60
Find the mode: 32, 28, 26, 31, 24
Find the Range: 12, 13, 13, 15, 10, 11, 11, 11, 10, 9
6
add up the set of numbers and divide by the total number of values
Mean
You play a word game. Your scores are 12, 23, 13, 32, and 25. Find your mean score.
21
Weekly sales of books at a store are 39, 19, 28, 9, 32, 34, and 18 books. What is the median number of books sold?
28
A sport store sold the following skate sizes: 5, 7, 4, 11, 8, 11, 7, 6, 5, 9, 9 ,10, 7, 4, and 7. What is the most popular size of skate?
7
Find the Range: 15, 17, 11, 20, 10, 18, 20, 19, 5
15
another name for the mean
the average
You keep track of the time you spend doing homework each day. You spend 58 minutes, 36 minutes, 45 minutes, and 25 minutes. Find the mean of the times.
41
Find the median: 19, 18, 34, 23, 24, 19, 20, 20, 22, 23
21
Find the mode: 90, 48, 128, 48, 74, 90
48 and 90
Find the Range: $17.93, $5.99, $21.72, $6.50, $15.97
$15.73