Knowledge center. Chickenpox (Chicken Pox) , also known as Varicella, is a very contagious infection caused by the varicella zoster virus. In several parts of the world it is just known as varicella. Patients develop a blister-like rash, which first appears on the face and trunk, and then spreads throughout the body.
Etymology[edit] Latin. See mode. modus â(plural modi) (law, obsolete) The arrangement of, or mode of expressing, the terms of a contract or conveyance.
Answers. Best Answer: modal class (â²mÅdÉl â²klas) (statistics) The class that contains more individuals than any other class in a statistical distribution. In an histogram (a bar chart) it will be the value with the longest bar which is the value with most frequency. Source(s):