Vocabulary Review



V O C A B U L A R Y Unit 6: Statistics TermWhat does it mean?What does it look like?FrequencyThe number of times a value appears in a set of data.See the counts in the table below? 10, 8, 7 and 9 shows the frequency certain ages were found in a data set.Frequency TableLists the number of times that a piece of data occurs in a set. For sets of data with a large spread the frequency is often grouped into equal intervals.Ages of Camp Members0-3104-788-11712-159Dot Plot (Line Plot)A display of data that is along a number line with points, or symbols, indicating the frequency of information about a single question or category.HistogramA type of bar graph used to display numerical data grouped in equal intervals. It shows the number of data items that occur within each interval.Stem-and-Leaf PlotOrganizes numerical data by place value. Box-and-Whisker Plot (box plot)A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (Five Number Summary.)Interquartile Range (IQR)The difference between the upper and lower quartiles. It indicates the spread of the middle 50% of the data.Measures of SpreadA number that indicates the variability of the data. Ex. Range, IQR, MAD.RangeThe difference between the highest and lowest values in a set of data.Measures of CenterA number that describes the middle or center of the data. Examples: mean, median, mode.MedianThe middle number when a set of data is arranged in order.Ex. Order the values from least to greatest. Locate the middle value. 4, 5, 5, 5, 6, 7, 8, 8, 8 Median=6---------------------------------------------------------------------------------------------------------For two middle values, find the average of the two values.4, 5, 5, 5, 6, 7, 8, 8 Median= 5.5MeanThe “average” of a set of data, found by adding all pieces of data and dividing by the number of data items.Ex. 4, 5, 5, 5, 6, 7, 8, 84+5+5+5+6+7+8+8= 4848 ÷ 8 = 6Mean = 6ModeThe number that occurs the most in a set of data.Ex. 4, 5, 5, 5, 6, 7, 8, 8The mode is 5.Mean Absolute Deviation (MAD)The average distance of all data points from the mean.Ex. 10, 5, 12The mean is (10+5+12)/3= 9.10-9 = 1 9-5= 4 12-9= 3The MAD is (1+4+3)/3= ~2.7OutlierA value that is far away from most other values in a data set. The value is much higher or much lower than the rest of the data values.Ex. 10, 12, 10, 12, 13, 15, 16, 99In this set of data, “99” might be an outlier.A question that generates a _____________ of ________________ is called a statistical question. A statistical question requires ___________________ to answer it. Examples:V O C A B U L A R Y Unit 6: Statistics TermWhat does it mean?What does it look like?The number of times a value appears in a set of data.See the counts in the table below? 10, 8, 7 and 9 shows the frequency certain ages were found in a data set.Lists the number of times that a piece of data occurs in a set. For sets of data with a large spread the frequency is often grouped into equal intervals.Ages of Camp Members0-3104-788-11712-159A display of data that is along a number line with points, or symbols, indicating the frequency of information about a single question or category.A type of bar graph used to display numerical data grouped in equal intervals. It shows the number of data items that occur within each anizes numerical data by place value. A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (Five Number Summary.)The difference between the upper and lower quartiles. It indicates the spread of the middle 50% of the data.A number that indicates the variability of the data. Ex. Range, IQR, MAD.The difference between the highest and lowest values in a set of data.A number that describes the middle or center of the data. Examples: mean, median, mode.The middle number when a set of data is arranged in order.Ex. Order the values from least to greatest. Locate the middle value. 4, 5, 5, 5, 6, 7, 8, 8, 8 Median=6---------------------------------------------------------------------------------------------------------For two middle values, find the average of the two values.4, 5, 5, 5, 6, 7, 8, 8 Median= 5.5The “average” of a set of data, found by adding all pieces of data and dividing by the number of data items.Ex. 4, 5, 5, 5, 6, 7, 8, 84+5+5+5+6+7+8+8= 4848 ÷ 8 = 6Mean = 6The number that occurs the most in a set of data.Ex. 4, 5, 5, 5, 6, 7, 8, 8The mode is 5.The average distance of all data points from the mean.Ex. 10, 5, 12The mean is (10+5+12)/3= 9.10-9 = 1 9-5= 4 12-9= 3The MAD is (1+4+3)/3= ~2.7A value that is far away from most other values in a data set. The values is much higher or much lower than the rest of the data values.Ex. 10, 12, 10, 12, 13, 15, 16, 99In this set of data, “99” might be an outlier.A question that generates a _____________ of ________________ is called a statistical question. A statistical question requires ___________________ to answer it. Examples:V O C A B U L A R Y Unit 6: Statistics TermWhat does it mean?What does it look like?FrequencyThe number of times a value appears in a set of data.Frequency TableLists the number of times that a piece of data occurs in a set. For sets of data with a large spread the frequency is often grouped into equal intervals.Dot Plot (Line Plot)A display of data that is along a number line with points, or symbols, indicating the frequency of information about a single question or category.HistogramA type of bar graph used to display numerical data grouped in equal intervals. It shows the number of data items that occur within each interval.Stem-and-Leaf PlotOrganizes numerical data by place value.Box-and-Whisker Plot (box plot)A diagram that summarizes data using the median, the upper and lower quartiles, and the extreme values (Five Number Summary.)Interquartile Range (IQR)The difference between the upper and lower quartiles. It indicates the spread of the middle 50% of the data.Measures of SpreadA number that indicates the variability of the data. Ex. Range, IQR, MAD.RangeThe difference between the highest and lowest values in a set of data.Measures of CenterA number that describes the middle or center of the data. Examples: mean, median, mode.MedianThe middle number when a set of data is arranged in order.MeanThe “average” of a set of data, found by adding all pieces of data and dividing by the number of data items.ModeThe number that occurs the most in a set of data.Mean Absolute Deviation (MAD)The average distance of all data points from the mean.OutlierA value that is far away from most other values in a data set. The values is much higher or much lower than the rest of the data values.A question that generates a _____________ of ________________ is called a statistical question. A statistical question requires ___________________ to answer it. Examples:V O C A B U L A R Y Unit 6: Statistics TermWhat does it mean?What does it look like?FrequencySee the counts in the table below? 10, 8, 7 and 9 shows the frequency certain ages were found in a data set.Frequency TableAges of Camp Members0-3104-788-11712-159Dot Plot (Line Plot)HistogramStem-and-Leaf PlotBox-and-Whisker Plot (box plot)Interquartile Range (IQR)Measures of SpreadRangeMeasures of CenterMedianEx. Order the values from least to greatest. Locate the middle value. 4, 5, 5, 5, 6, 7, 8, 8, 8 Median=6---------------------------------------------------------------------------------------------------------For two middle values, find the average of the two values.4, 5, 5, 5, 6, 7, 8, 8 Median= 5.5MeanEx. 4, 5, 5, 5, 6, 7, 8, 84+5+5+5+6+7+8+8= 4848 ÷ 8 = 6Mean = 6ModeEx. 4, 5, 5, 5, 6, 7, 8, 8The mode is 5.OutlierEx. 10, 12, 10, 12, 13, 15, 16, 99In this set of data, “99” might be an outlier.A question that generates a ____________ of ____________is called a statistical question. Example: ________________________________ Non-Example: _______________________________The two types of data are: ____________________ and ____________________________Examples: ................
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