|Back-to-Back Stem and Leaf Plot||A stem-and leaf plot that is used to compare two related sets of data.
In this example, the section on the right is a regular stem-and-leaf plot for Team A. The Team B data, on the left, uses the same stem and the leafs are written backwards (largest first).
|Bar Graph||A graph where data is shown in bars that are used to compare amounts.
The length of each bar represents the frequency, so taller bars have more.
|Base||In geometry, the base is the surface a solid sits on (the bottom)
In Algebra when you have an expression of the form xn, x is the base and n is the exponent.
In number systems, base is the number of digits you have to work with.
|Best Fit Line||The straight line that most closely approximates the data in a scatter plot.|
|Beta Β β||Greek letter frequently used to represent angles,
especially when two or more angles are shown.
The funny T thing is a gamma γ, the third letter of the Greek alphabet.
|Binomial||Polynomial expression with two terms.
Bi means two and poly means many.
|Binomial Experiment||In probability, an experiment that has only two possible outcomes
Tossing one coin is a binomial experiment because you only get heads or tails
True or false questions are binomial, because they only can be answered T or F
|Binomial Theorem||The expansion of (a + b)n where n is a positive
(a + b)n= C0an + C1an-1b1 + C2an-2b2 + ... + Cn-1a1bn-1 + Cnbn
In English, this means take a simple binomial (two terms) and multiply it by itself one or more times.
|(x + 3)2= (x + 3)(x + 3) = x2 + 6x + 9
This is a binomial expansion.
|Bounded intervals||Intervals with defined end points on the real number line used to define the domain of an inequality. See unbounded intervals||[a,b] means a < x < b, a closed interval
(a,b) means a < x < b, an open interval
[a,b) means a < x < b
(a,b] means a < x < b
|Box and Whisker Plot||A diagram that divides a set of data into four parts: lower quartile, below the mean
(average), above the mean, and highest quartile.
It has this name because it sort of looks like a cat with whiskers sticking out.
|Branch||Each piece of a discontinuous
graph where it jumps or has a hole.
A piecewise graph (example shown at right) can have discontiuities. Another graph that might have discontinuities is when you try to divide by zero.
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