As well as this one

9. Connor and Sigfried are appliance repair technicians, working for a company called Eastern Appliance Repair. Sigfried has been on 61% of Eastern's service calls. At least one of the two workers has been on 73% of Eastern's service calls. Assume that Sigfried being on a service call and Connor being on a service call are independent events. What is the probability that Connor will be on the next service call, based on the data