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I personally hated these. So say you have a set of numbers. 78, 80, 81, 83 ,and 85.
You need to find the lower quartile, upper quartile, and of course median. the highest and lowest points will be on the end. draw a box around the upper, and lower quartile and lines coming out from it connecting to 78 and 85.
you must have the cumulative frequency and calculate the upper and lower quartiles.
Firstly, you must (from a set of data,) find the highest and lowest value, on a number line, plot these down using a short line. Next plot your median, upper and lower quartile range, plot these on using a larger line and join the lines up to form a box plot. You are now done!
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When do you use a box-plot?
A box plot may be used at a preliminary stage to determine the centre and spread of a set of data. The box [and whiskers] plot measures the central point by the median and the range from the maximum and minimum or the quartile points.
Is a stem and leaf plot the same as a box and whiskers plot?
No, they are two different things. Mainly because the Box And Whisker Plot has a different technique and focuses on highs and lows. The Stem and Leaf Plot has to do with key codes, grouping numbers, and amounts.
How can you tell if data is skewed on a box plot?
If the median is exactly in the middle of the box, and the box is exactly in the middle of the whiskers, then skewness = 0. The data are skewed if either the median is off-centre in the box, or if the box is off-centre overall.
What is the range of the data set in the box and whisker plot?
The whiskers go from the minimum to the maximum though outliers may be excluded. The box, itself, goes from the lower quartile to the upper quartile.
What is the purpose in a box and whisker plot?
A box and whiskers plot is a very simple way off showing summary information for a set of data. This can allow some quick analyses of the location and spread of data and permit simple comparisons between sets of data.
What is the median number between 51015202530354045 in a box and whisker plot?
There can be no sensible box-and-whiskers plot for just one number - no matter how large it is.There can be no sensible box-and-whiskers plot for just one number - no matter how large it is.There can be no sensible box-and-whiskers plot for just one number - no matter how large it is.There can be no sensible box-and-whiskers plot for just one number - no matter how large it is.
How do you set up a box and whiskers plot with multiple numbers?
By transferring the numerical data from the cumulative frequency curve into a box and whiskers plot.
What if the data doesnt have a median how do we make a box and whisker plot?
If the data are quantitative they must have a median. If there is no median it is only because the data are qualitative and, in that case, a box and whiskers plot is meaningless.
How do you find the outlier in a box and whiskers plot?
try this site https.google.com
What does the whisker in a box-and-whisker plot represent?
The whiskers mark the ends of the range of figures - they are the furthest outliers. * * * * * No. Outliers are not part of a box and whiskers plot. The whiskers mark the ends of the minimum and maximum observations EXCLUDING outliers. Outliers, if any, are marked with an X.
What are the whiskers of a box plot?
They are some measure of the dispersion or range of numbers in the set of data.
Who invented the box-and-whiskers-plot?
It was invented by the American statistician John Tukey in 1977
What is the smallest value in a box-and-whiskers plot called?
The minimum - or outlier-adjusted minimum.
When do you use a box-plot?
A box plot may be used at a preliminary stage to determine the centre and spread of a set of data. The box [and whiskers] plot measures the central point by the median and the range from the maximum and minimum or the quartile points.
How are outliers of a data set related to the whiskers of its box plot?
Outliers on a modified box plot will be noted away from the ends of the whiskers, as they are not considered part of the range, due to the fact that they are so different from the rest of the data. In a regular box plot, the lowest value, whether it is an outlier or not, will be the beginning of the 1st whisker, the highest value, whether an outlier or not will be the end of the 2nd whisker.
What are four parts of the box and whisker plot called?
There are 5 (not 4) parts of an elementary box and whiskers plot. From left to right, they are: minimum, lower quartile, median, upper quartile, and maximum. A more advanced version of plot is used for data containing outliers. In such cases the whiskers extend to the minimum or maximum EXCLUDING the outlier(s) and the outliers themselves are marked with Xs - beyond the scope of the whiskers.
What is a representation of data that shows the extremes and quartiles of a data set?
Probably the box and whiskers plot, but there are others.
