Algebra is one of the broad areas of mathematics, together with number theory, geometry and analysis. In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. Wanna understand Maths better? Take this Algebra quiz!
Circle
Line
Bar
Double-bar
100
120
200
220
2000
2001
2002
2003
70–80 and 80–90
70–79 and 80–84
70–79 and 80–89
70–80 and 81–90
72
80
82.5
83.2
72
80
82.5
83.2
Range
Mean
Median
Mode
12 and 18
12 and 30
18 and 26
22 and 30
The sample size is too small
The sample is biased.
The median is equal to the mode.
The mean is not a good descriptor for this data.
Prices have been increasing
Prices have been decreasing
Prices tripled between 1999 and 2004.
Prices decreased between the years 2003 and 2004.