variable A variable is something measurable or observable that is expected to (statistics) change either over time or between individual observations. Examples of variables in statistics include the age of students, their hair colour or a playing field's length or its shape. Venn diagram A Venn diagram is a graphical representation of the extent to which two or more events, for example and , are mutually inclusive (overlap) or mutually exclusive (do not overlap). vertically opposite When two lines intersect, four angles are formed at the point of angle intersection. In the diagram, the angles marked AOX and BOY are called vertically opposite. volume The volume of a solid region is a measure of the size of a region. For a rectangular prism, . whole number A whole number is a non-negative integer, that is, one of the numbers 0, 1, 2, 3, … Sometimes it is taken to mean only a positive integer, or any integer.
variable (statistics) A variable is something measurable or observable that is expected to change either over time or between individual observations. Examples of variables in statistics include the age of students, their hair colour or a playing field's length or its shape. Venn diagram A Venn diagram is a graphical representation of the extent to which two or more events, for example and , are mutually inclusive (overlap) or mutually exclusive (do not overlap). vertically opposite angle When two lines intersect, four angles are formed at the point of intersection. In the diagram, the angles marked AOX and BOY are called vertically opposite. volume The volume of a solid region is a measure of the size of a region. For a rectangular prism, . whole number A whole number is a non-negative integer, that is, one of the numbers 0, 1, 2, 3, … Sometimes it is taken to mean only a positive integer, or any integer.