classboundaries		cumulative frequencies used instead of the individual class frequencies
classwidth		standard score
deciles		is a graph showed by slices of a pie
bimodal		sum of the frequencies for that class and all previous classes
dotplot		the number of values in the data set
rangeruleofthumb		consists of the minimum value; the 1s quartile,Q1; the median, or 2nd quartile;Q2,the 3rd quartile, Q3, maximum value
outlier		is a variation of values about the mean
median		denoted bt D1,D2,D3,.........,D9
exploratorydataanalysis		distribution that is approximately bell-shaped
inferentialstatistics		are the largest numbers that can belong to the different classes
cumulativefrequency		is a value that is located very far away from almost all of the other values
chebyshev'stheorem		is a bar graph for qualitative data, with the bars arranged in order according to frequencies
frequencytable		are the smallest numbers that can belong to the different classes
empiricalrule		is number obtained by adding the values and dividing the total by the number of values
relativefrequencies		is a mean computed with the different scores assigned different weights
classmidpoints		are midpoints of the classes
mode		the mean and median are to the right of the mode
relativefrequencytable		if not symmetric and if it extends more to one side than the other
relativefrequencyhistogram		two values occur with the same greatest
frequency		uses line segments connected to points located directly above class midpoint values
skewed		denoted by Q1,Q2, andQ3
ogive		more than two values occur with the same greatest frequency
negativelyskewed		difference between the value and the mean
variance		data values is plotted as a point along a scale of values
meanabsolutedeviation		is a value at the center or middle of a data set
boxplot		or a box-and-whisker diagram
quartiles		___ or z score
standardscore		separating each value into parts; the stem and the leaf
measureofcenter		no more than 1/k2 of the values are more than k standard deviations away from the mean.
piechart		middle value
descriptivestatistics		value that occurs most frequently
unbiasedestimator		highest value - lowest value
paretochart		if the left half of its histogram is roughly a mirror image of its right half
histogram		measure of variation equal to the square of the standard deviation
5-numbersummary		is a line graph that depicts cumulative frequencies
lowerclasslimits		is the difference between two consecutive lower class limits or two consecutive lower class boundaries
multimodal		vertical scale is marked with relative frequencies
range		sample data to make inferences about a population
upperclasslimits		dividing each class frequency by total of all frequencies
cummulativefrequencytable		divide that sum by the number of sample values
mean		= highest value lowest value/ 2
standarddeviation		sample variance s^2
positivelyskewed		an average
weightedmean		summarize or describe the important characteristics of a set of data
midrange		denoted by P1,P2,.........,P9
zscore		are the numbers used to separate classes, but withou the gaps created by class limits
arithmeticmean		is the process of using statistical tools to investigate data set in order to understand their important charcteristics
percentiles		the mean and median are to the left of the mode
scatterdiagram		lists classes of values, along with counts
steam-and-leafplot		is a plot of the paired (x,y) data with a horizontal x-axis and a vertical y-axis
deviation		same class limits as a frequency table,but relative frequencies are used
frequencypolygon		sample values lie within 2 standard deviation of the mean
symmetric		the number of original scores that fall into that class
samplesize		is a bar graph in which the horizontal scale represents classes and the vertical scale represents frequencies