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 about you tell me what a misleading box and whisker plot is first and then ill answer ur question ;)
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The two basic divisions of data are qualitative or categorical data and quantitative or numeric data. Just because you have a number, doesn't necessarily make it quantitative. For example, zip codes, phone numbers and bank-accounts are numeric, but it doesn't make much sense to find the average phone number or median zip-code. These are examples of numbers applied to categorical data.
There are several disadvantages and advantages to a median. One advantage is that it avoids collisions of cars driving in opposite directions. One disadvantage is that drivers must make more U-turns in order to make left turns.
The median lethal dose is the average dose of a toxin that could cause death for specific individuals, taking into account age, height, weight, and general health. The median toxicity dose under the same conditions is the amount of a toxin needed to make one ill.
a box and whisker plot showing the median number
A box and whisker graph is used to display a set of data so that you can easily see where most of the numbers are. First you write the data from smallest to largest. Then you find the median of all the numbers. This is called the main median. Next you look at the numbers on either side of the median and find their median. These are called the lower and upper medians. So you are just finding the median of a subset. One subset is the numbers above the median and one is the numbers below the median. Now, on the number line, make a mark for the main median and a mark for the upper and lower medians. Next, draw a box with the median lines above as the endpoints. Really it looks like a box with a line in the middle where the main median is. This is the BOX in the box and whisker graph. Last, draw lines from the ends of the box to the smallest data point and largest data point on either side of the box. These are the WHISKERS. The graphs you made tells you the range of the data and it tells you where each quarter is. The three medians split the data into 4 parts.
It is a useful scheme to summarise data. It provides information on the central tendency (median) and a measure of spread (inter-quartile range). The total range is also indicated and outliers are separately identified. The location of the median within the IQR "box" provides an indication of the skewness of the data.
From smallest to largest, they are the minimum, lower quartile, median, upper quartile and maximum.
Here are some steps to make a box and whisker plot: 1. Sort your data set from smallest to lowest 2. Locate and draw the median (or middle value) 3. Identify the numbers forming the lower half of the data set, and draw the median of these numbers. 4. Identify the numbers forming the upper half of the data set, and draw the median of these numbers. 5. Now connect the medians to make the box 6. Lasty, plot the least and greatest values from the entire set and connect them to the box with a line This may sound complicated, but is actually very easy if you can visualize it. Here is a site with an animated lesson and an interactive activity that will draw a box plot for any data set you create. http://www.brainingcamp.com/resources/math/box-plots/box-plots-lesson.php
well, they're both affected. you will get both answers wrong if you make a mistake so it doesnt matter which one is more important, just pay attention
A box and whisker graph is used to display a set of data so that you can easily see where most of the numbers are. Here is a link to a nice VIDEO that shows you how to make and understand the plots. http://www.metacafe.com/watch/1033050/box_and_whisker_plot/
The furry cat ,gently groomed herself and straightened up her whisker
how about you tell me what a misleading box and whisker plot is first and then ill answer ur question ;)
youtube
Are you in 8P by any chance.
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