Please answer with details on how to do it. Make handwriting legible. Thank you.

if you use the calculator how did you do it?

I'll appreciate your help! :)

question 10 to 12

a) AUB b) B' c) A' d) B 10. Investment in new issues (the stock of newly formed companies) can be both suicidal and rewarding. Suppose of the 500 newly formed companies in year 2015, only 15 appear to have outstanding prospects. Suppose that you had selected two of theses 500 companies back in 2015. Find the probability that at least one of your companies had outstanding prospects? a) 0.055216 b) .27899 c) .0272705 d) .9447295 0 . 059 11. In today's business world, computer viruses can be lethal to the operations of a company. Suppose a local business has( 31 laptop computers and, unknown to the company, that six of these are infected with a deadly UH-OH virus. The CEO of the company is making a big presentation at a major client and has randomly selected two laptops to use during the presentation. Find the probability that both of the computers selected for the presentation are infected by the UH-OH virus. a) 15/465 b) 330/961 c) 30/961 d) 600/961 12. Reread problem 11. What is the probability at least one of the computers selected for the presentation is infected by the UH-OH virus: 10 /061 20/961 320/961 F) 11/31