30 terms

statistics

the collection, organization, presentation, interpretation and analysis of data

stem & leaf

a data display that shows groups of data arranged by place value

magnitude

a number assigned to a quantity so that it may be compared with other quantities; a property that can be described by a real number, such as the volume of a sphere or the length of a vector

exponential notation

lets you move a decimal point in a number; simplifies numbers by getting rid of zeros

standard notation

decimal notation as opposed to scientific or power of the notation

exponent/power

a small number placed to the upper right of a number - shows the number of times the base is multiplied

scientific notation

a way of writing very large or very small numbers using a number between 1 and 10 and multiplied by a power of 10

formula

a mathematical rule using symbols usually as an equation describing relationships between quantities

variable

a quantity that can change, taking on different values; letters or symbols can represent

evaluate

a term used in algebra - to find a numerical value for it, to work it out

spreadsheet

a representation used to organize and manipulate data information is entered into cells and arranged in columns and rows

intersecting lines

lines crossing over one another

vertex

point where surfaces meet; corner

coordinates (coordinate grid)

shown as a pair of letters or numbers to show position or a coordinate plane or map (a plane containing two perpendicular axes intersecting at the origin, 0, 0)

reflection

a mirror view

bisector

a line, point, or plane dividing something into two equal sections

reciprocal

one of two numbers whose product is one; multiplicative inverse

inverse

the quantity cancelling out a given quantity; different kinds of inverses for different operations

order of operations

the order in which operations should be done (PEMDAS)

equation

mathematical statement containing an = sign to show that two expressions are equal

solution

answers to a problem

constant

a quantity having a fixed value that does not change; example: a number

probability

the chance that a particular outcome will occur, measured as a ratio of possible outcomes

proportion

a part to whole comparison

rate

ratio comparing quantities in different units

ratio

comparative value of two or more amounts

scale

basis for a number system

simplify

to make less complex or complicated; make plainer or easier

square numbers

a number that results from multiplying another number by itself

square root

a number when multiplied by itself gives the original number