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Math Chapter 3

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Mean   the data set is the sum of the values divided by the number of values  
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Median   the data set is the middle value when the values, the median is the mean of the two middle values  
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Mode   the data set is the value tha occurs the most often. A data can have no mode, onemode, or more than one mode  
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Population   the entire group of people or objects that you want information about  
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Sample   a part of a population  
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Random Sample   a sample selectedin such a way thateach member of the population has an equally likely chance to e part of the sample  
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Biased sample   a sample that is not representive of the population from what it is selected  
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Bar graph   a type of graph in which the lenght of the bars are used to represent and compare data  
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Line graph   a type of graph in which points representing data pairs are connected by line segments  
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Stem-and-leaf plot   a datadisplays that helps you see how data values are distributed  
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Box-and-whisker plot   a data that displys that divides data values into five parts  
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Lower quartile   the median of the lower half  
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Upper quartile   the median of the upper half  
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Lower extreme   the least value  
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Upper extreme   the greatest value  
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Frequency table   a table used to group data values into intervals  
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Frequency   the number of data values that lie in an interval of a frequency table or a histogram  
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Histogram   a graph that displays data from a frequency table  
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Range   the difference between the greastest and the lowest in the data set  
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Created by: kimmk1209
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