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CC1 Chap 8 Vocab

TermDefinition
box plot a graphic way of showing a summary of data using the median, quartiles, and extremes of the data.
double-peaked description of the overall shape of a a data distribution that has 2 peaks
first quartile the median of the lower half of an ordered set of data
histogram A way of displaying data that is much like a bar graph in that the height of the bars is proportional to the number of elements
interquartile range (IQR) a way to measure the spread of data
maximum the highest value
mean average
mean absolute deviation a method of measuring the spread in a set of data by calculating the average distance each data point is from the mean
measures of central tendency mean and median
median the middle number of an ordered set of data
minimum the lowest value
outlier a number in a set of data that is much larger or smaller than the other numbers in the set
quartiles divide a set of data into four groups of the same size
range difference between the largest and smallest values
rate A ratio comparing two quantities
ratio compares two quantities by division.
single-peaked description of the overall shape of a a data distribution that has 1 peak
skewed a description of the overall shape of a a data distribution that gradually gets larger or smaller
statistical quesitons a question that can be answered by collecting data
stem-and-leaf plot a frequency distribution that arranges data into "stems" and "leaves"
symmetric a description of the overall shape of a a data distribution that starts high, goes low and ends high
third quartile The median of the upper half of an ordered set of data
uniform a description of the overall shape of a a data distribution that is steady throughout the graph
Created by: reiderk
 

 



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