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6th CCSSM Stat/prob

6th Statistics and Probability - COMMON CORE - COMPLETE

TermDefinition
statistics a branch of applied mathematics concerned with collecting, organizing, and interpreting data. The data are represented by means of graphs; also the mathematical study of the likelihood and probability of events occurring based on known quantitative data o
data A collection of facts, such as numbers, words, measurements, observations or even just descriptions of things
variability refers to how spread out a group of data is. In other words, variability measures how much your scores differ from each other; also referred to as dispersion or spread. Data sets with similar values are said to have little variability, while data sets tha
distribution When data seems to be "gathered" around a particular value
histogram A graphical display where the data is grouped into ranges (such as "40 to 49", "50 to 59", etc), and then plotted as bars. Similar to a Bar Graph, but in this each bar is for a range of data.
box plots A method of visually displaying a distribution of data values by using the median, quartiles, and extremes of the data set. A box shows the middle 50% of the data.1
median a measure of center in a set of numerical data. The median of a list of values is the value appearing at the center of a sorted version of the list—or the mean of the two central values, if the list contains an even number of values. Example: For the data
mean A measure of center in a set of numerical data, computed by adding the values in a list and then dividing by the number of values in the list.4 Example: For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the mean is 21.
dot plot A method of visually displaying a distribution of data values where each data value is shown as a dot or mark above a number line. Also known as a line plot.
histogram A graphical display where the data is grouped into ranges (such as "40 to 49", "50 to 59", etc), and then plotted as bars. Similar to a Bar Graph, but in this each bar is for a range of data.
frequency tables tables that show the number of occurrences of a particular item in a set of data
cluster When data seems to be "gathered" around a particular value.
peak the highest point in a graph
gap the ''large'' open space between some data points
interquartile range A measure of variation in a set of numerical data, the interquartile range is the distance between the first and third quartiles of the data set. Example: For the data set {1, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the interquartile range is 15 – 6 = 9. See a
measures of center is a value that attempts to describe a set of data by identifying the central position of the data set
measures of variability measure of the spread of a data set.
Mean Absolute Deviation (M.A.D.) A measure of variation in a set of numerical data, computed by adding the distances between each data value and the mean, then dividing by the number of data values. Example: For the data set {2, 3, 6, 7, 10, 12, 14, 15, 22, 120}, the mean absolute deviat
quartiles The values that divide a list of numbers into quarters.
lower quartile (1st quartile or Q1) the median of the lower half of a set of data.
symmetrical when one shape becomes exactly like another if you flip, slide or turn it.
skewed (skewness) in statistics, a measure of the asymmetry of the probability distribution of a real-valued random variable about its mean.
summary statistics The information that gives a quick and simple description of the data. Can include mean, median, mode, minimum value, maximum value, range, standard deviation, etc.
outlier an element of a data set that distinctly stands out from the rest of the data.
Created by: artisteacher