The parole board is alarmed by the low number of years served out of 20 year sentences for a group of upcoming potential parolees. 5 98 99 What is the standard deviation? Possible formulas: (x-X) EX_32 VN O 1.14 1.55 2.28 3.25 The parole board is alarmed by the low number of years served out of 20 year sentences for a group of upcoming potential parolees. 5 98 99 What is the variance? Possible formulas: 3 [lx-*** s - Ex- 1.14 2.29 1.51 0 24