VERY ASAP PLS

1. Find the variance and the standard deviation of the following frequency distribution. Complete the table P(X) X. P(X) X' . P (X ) 0.015 0.025 0.100 0.150 0.040 0.050 0.250 0.140 0.060 - 100 0 9 0.080 0.090 4 = [X2 . P (X) ] - 12