W dwudziestopięcioosobowej klasie VI b chłopcy stanowią 60% wszystkich uczniów. 25% tych chłopców lubi jeździć na rolkach. ilu chłopców z klasy VI b lubi jeździć na rolkach? ​

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%