Make it in a paper by hand pleaseee

1. The lifetime of a certain electronic component follows a normal distribution with a mean of 5 years and a standard deviation of 2 years. a] What is the probability that a component will last between 2 and 9 years? b] The manufacturer is willing to replace only 5% of the components with shorter lifetimes. 1What is the duration that the manufacturer must offer as a guarantee? 2. The student Juan develops the following exercise proposed in class: Of the total projects presented to the Ministry of Economy, 30% are from the agricultural sector, 25% are from the mining sector and 45% from other sectors. According to the amounts of the projects, the government has decided to approve 23% of projects in the agricultural sector, 25% in the mining sector and 15% of projects in other sectors. If one of these projects is chosen at random and it is known that it is not approved, what is the probability that it is from the mining sector? Juan's resolution is shown below. approved (0, 23 ) agricultural (0, 30 )