Shingles is caused by the varicella zoster virus (VZV), the same virus that causes chickenpox. After a person recovers from chickenpox, the virus stays dormant (inactive) in the body. For reasons that are not fully known, the virus can reactivate years later, causing shingles. Shingles is not caused by the same virus that causes genital herpes, a sexually transmitted disease.
And different software packages use all different sorts of formulas. Be careful to use the formula from your book when doing your homework! Additionally, the box-and-whisker plot may include a cross or an X marking the mean value of the data, in addition to the line inside the box that marks the median. The difference between the X and the median line can then be used as a measure of skew. Please don't ask me to explain skew.
Box Whisker Plot is a pictorial representation of the five number summary. The box lies between the first and third quartiles and the extremes of the whiskers lie at the minimum and maximum values. A box plot is the most convenient way to graph and depict groups for numerical data.he box and whisker plot contains boxes and tails called whiskers. A box contains the highlight points, or central values i.e. the middle half of the given data points. The whisker reflects the other half of the data points. The box and whisker plot is a very convenient way of representing groups in a numerical data.