3. Suppose there has been a global ransomware attack and both business computers and non-business computers, i.e. personally used devices have been affected. Out of all the affected devices, 60% have been business devices. The ransomware demanded that a certain amount of money is to be paid in Bitcoins, then an affected device is usable again. The money has been paid for 15% of the affected business computers and for 10% of the personally used computers. a) Compute the probability that, for an affected computer, this computer was a business computer and that it has been paid for this computer, b) Find, among the whole population of affected devices, the probability that the demanded money has been paid. c) Find the probability that, if it has been paid for an effected device, this device was used in a business context. Note: always name of the formulas or theorems that you are using, if they have a name, and repeat the formulas in the way you are using them. hp