Mean:
-- Also known as the average. The mean is found by adding up all of the given data and
dividing by the number of data entries.
Example:
- the grade 10 math class recently had a mathematics test and the grades were as
follows:
78
66
82 464 / 6 = 77.3
89
75 Hence, 77.3 is the mean average of the class.
+ 74
464
Mode:
-- this is the number that occurs most often.
Example:
- find the mode of the following data:
78 56 68 92 84 76 74 56 68 66 78 72 66
65 53 61 62 78 84 61 90 87 77 62 88 81
The mode is 78.