The following table summarise the waiting time (in seconds) for customers. Cumulative Answer Time Frequency Percentage Percentage 5 to less than 10 8 16% 16% 10 to less 15 30% 46% than 15 18 36% 82% 6 12% 94% 15 to less than 20 20 to less than 25 25 to less than 30 TOTAL 3 6% 100% 50 100% What percent of customers waiting for less than 20 seconds