What Are the Values of Z That Correspond to the P(-Z

Short Answer

What are the values of z that correspond to the P(-z $\le$ Z $\le$ z) equal to 0.4778? $\begin{array}{|l|l|}\hline A&\pm 0.2389\\\hline B&\pm 0.71\\\hline C&\pm 0.64 \\\hline D&\text { None of these choices are correct.}\\\hline \end{array}$