Sue Anne Owns a Medium-Sized Business What Is the Standard Deviation of the Number of Employees

Multiple Choice

Sue Anne owns a medium-sized business.The probability model below describes the number of employees that may call in sick on any given day. $$\begin{array} { c | c c c c c } \text { Number of Employees Sick } & 0 & 1 & 2 & 3 & 4 \\\hline \mathrm { P } ( \mathrm { X } = \mathrm { x } ) & 0.05 & 0.4 & 0.25 & 0.2 & 0.1\end{array}$$ What is the standard deviation of the number of employees calling in sick each day?

A) 1.20
B) 1.09
C) 1.31
D) 1.19
E) 0.98