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Ch 2 Vocab

contains vocab from Chapter 2

Natural Number The set {1, 2, 3, ...}
Whole Number The set {0, 1, 2, 3, ...}
Integers The set {..., -2, -1, 0, 1, 2, ...}
Positive Number Any value that is greater than zero
Negative Number Any value less than zero
Rational Numbers The set of numbers expressed in the form of a fraction a/b, where a and b are integers and b ≠ 0
Infinity Lines and sets that never end continue to infinity
Graph To draw, or plot, the points named by certain numbers or ordered pairs on a number line or coordinate plane
Coordinate The number that corresponds to a point on a number line
Absolute Value The absolute value of a number n is its distance from zero on a number line and is represented by ∣n∣
Opposites Every positive rational number and its negative pair
Additive Inverses A number and its opposite are additive inverses of each other. The sum of a number and its addictive inverse is 0
Line Plot A number line labeled with a scale to include all the data with an X placed above a data point each time it occurs
Frequency How often a piece of data occurs
Stem-and-Leaf Plot A system used to separate data into two numbers that are used to form a number
Back-to-Back Stem-and-Leaf Plot Used to compare two related sets of data
Measures of Central Tendency Numbers or pieces of data that can represent the whole set of data
Probability The ratio of the number of favorable outcomes for and event to the number of possible outcomes of the event. P(a)=number of favorable outcomes divided by total number of possible outcomes
Simple Event A single event
Sample Space The list of all possible outcomes
Equally Likely Outcomes for which the probability of each occurring is equal
Odds The ratio that compares the number of ways an even can occur (successes) to the number of ways the event cannot occur (failures)
Created by: abranch