The cause of gastrointestinal problems for dogs is often related to their tendency to eat things they shouldn't, while cats may suffer digestive system upset as a result of parasites in their prey. For cats and dogs, studies show that a healthy population of gut bacteria is vital to a fit gastrointestinal tract.
In the simplest box plot the central rectangle spans the first quartile to the third quartile (the interquartile range or IQR). A segment inside the rectangle shows the median and whiskers above and below the box show the locations of the minimum and maximum.he box plot (a.k.a. box and whisker diagram) is a standardized way of displaying the distribution of data based on the five number summary: minimum, first quartile, median, third quartile, and maximum.
Sections: Quartiles, boxes, and whiskers, Five-number summary, Interquartile ranges and outliers. The  interquartile range, abbreviated  IQR , is just the width of the box in the box-and-whisker plot.That is, IQR = Q 3 â Q 1. The IQR can be used as a measure of how spread-out the values are.Statistics assumes that your values are clustered around some central value.o find out if there are any outliers, I first have to find the IQR. There are fifteen data points, so the median will be at position (15 + 1) Ã· 2 = 8. Then Q 2 = 14.6. There are seven data points on either side of the median, so Q 1 is the fourth value in the list and Q 3 is the twelfth: Q 1 = 14.4 and Q 3 = 14.9.