Measures of Variation
What is the range of the data set 14, 16, 18, 24, 19, 15, 13
What is 11?
13, 14, 15 in the data set 14, 16, 18, 24, 19, 15, 13
What is the lower quartile?
There is one outlier in the data set 20, 23, 18, 21, 4, 17, 15 You must show your work on the board.
What is 4?
A plot that uses a number line to show the distribution of a set of data by using five values.
What is a box-and-whisker plot?
Explain how to determine from a box-and-whisker plot whether there are any outliers in the data.
What is the outliers are shown as an asterisk beyond the extreme values, disconnected from the whisker of the box?
28 in the data set 29, 27, 24, 28, 30, 51, 28
What is the median?
18, 19, 24 in the data set 14, 18, 16, 24, 19, 15, 13
What is the upper quartile?
There are two outliers in the data set 22, 27, 25, 11, 29, 28, 41, 26, 28, 23. Show your work on the board.
What is 11 and 41?
This is drawn around the quartile values.
What is the box?
Explain what the upper quartile (3rd Quartile) is.
What is the median of the upper half of a set of data?
65 in the data set 91, 92, 88, 89, 93, 95, 65, 85, 91
What is the outlier?
3 in the data set 29, 27, 24, 28, 30, 51, 28
What is the interquartile range?
Data that are more than 1.5 times the value of the interquartile range beyond the quartiles.
What is outliers?
These extend from each quartile to the extreme data points that are not outliers.
What is whiskers?
Explain what the lower quartile (1st Quartile) is.
What is the median of the lower half of a set of data?
128.5 in the data set 132, 116, 108, 113, 126, 120, 131, 112, 126
What is the upper quartile median?
92 in the data set 90, 88, 72, 85, 92, 95, 93, 86, 92, 91
What is the upper quartile median?
Find the outliers in the data set 42, 36, 58, 47, 34, 43, 54, 49, 48, 41, 38
What is none?
The 5-number summary of: 4, 7, 5, 3, 9, 6, 4
What is Median=5 Upper= 7 Lower= 4 Greatest= 9 Least= 3?
The way the median of the set of data is represented on a box and whisker plot.
What is a vertical line?
107 in the data set 107, 114, 124, 108, 117, 106, 107, 109, 117, 115
What is the lower quartile median?
Subtract the upper quartile from the lower quartile
What is the interquartile range?
The way to find the limits for outliers.
What is to multiply the interquartile range by 1.5. Add that number to the upper quartile median and subtract it from the lower quartile median? ( Data that falls above or below the numbers are the outliers)
The 5-number summary of: 39, 41, 30, 14, 44, 40, 48, 39, 40, 36
What is Median= 40 Upper= 41 Lower= 36 Greatest= 48 Least= 30 Outlier= 14?
The steps to create a box-and-whisker plot.
What is 1.) Median, Greatest value, Least value 2.) Upper and lower quartile medians 3.) Interquartile range 4.) Outliers 5.) Create box-and-whisker plot?