Please solve thank you

The distribution of accuracy of impact locations from a very large number of impacts with Mjlnir {Thor's Hammer} was analyzed by a third-party insurance firm and found to he gaussian with a standard deviation in x and y directions of 51 = o}. = 1U cm along a radius r from the inmnded impact point. If the radius from the intended impact point is It} cm or greater Thor will miss the target, resulting in an even longer chain ofimprohahle and completely unnecessary ght Scenes, which will create n'ther structural and environmental damage, ms increasing insurance payouts and resulting in insurance companies losing money. The insurance company Wants to know: {a} What is the probability of Thor missing target? {b} What is the probability of Thor hitting the target? {c} What is the expected value of r (the expected value of Thor's inaccuracy]? {d} What is the variance of r? {e} What would the standard deviation need to he to have the expected value of r = Ill cm