If strep bacteria causes the infection, it can remain contagious for up to 2 weeks without treatment. However, antibiotics can shorten the contagious period and li â¦ mits to about 24 to 48 hours once the therapy starts.     http://health.top54u.com/post/How-Long-is-Tonsillitis-Contagious.aspx.
Calculate Options Implied Volatility in Excel. Implied Volatility Function: Returns the annualized volatility of an underlying security implied by the market price of a European call or put option on that security, based on Black-Scholes valuation. Description of parameters.
The Microsoft Excel COUNT function counts the number of cells that contain numbers as well as the number of arguments that contain numbers. The COUNT function is a built-in function in Excel that is categorized as a Statistical Function. It can be used as a worksheet function (WS) in Excel. As a worksheet function, the COUNT function can be entered as part of a formula in a cell of a worksheet.