0n the planet of Mercury, 4-year-olds average 2.8 hours a dayr unsupervised. Most of the unsupervised children live in mral areas, considered safe. Suppose that the standard deviation is 1.6 hours and the amount of time spent alone is normallyr distributed. We randomlyr survey one Mercuan 4year-old living in a rural area. We are interested in the amount of time I the child spends alone per day. [Source: San Jose Mercury News]: Round all answers to 4 decimal places where possible. a. What is the distribution of I? X ~ N{:],:'} c. 1|.I'I.ihat percent of the children spend over 2.1 hours per day unsupervised. S96 {Round to 2 decimal places] d. 9096 of all children spend at least how many.r hours per dayr unsupervised? C] hours