A doctor's office staff studied the waiting times for patients who arrive at the office with a request for emergency service. The following data with waiting times in minutes were collected over a one-month period. 5511154521611776182286713164 a. Fill in the frequency values below. Waiting Time Frequency 0_4 3 to 59 1014 3 M 1519 4 \"-0 2024 1 9 Total 20 Q0 b. Fill in the relative frequency values below (2 decimals). Waiting Time Relative Frequency 0_4 .15 \\'0 5_9 .45 M 1014 -15 \"'9 1519 -2 20 24 -5 @6@ Total 1 c. H\" in the cumulative frequency values below. Waiting Time Cumulative Frequency Less than or equal to 4 0 Less than or equal to 9 0 Less than or equal to 14 0 Less than or equal to 19 0 Less than or equal to 24 0 d. Fill in the cumulative relative frequency values below (2 decimals). Waiting Time Cumulative Relative Frequency Less than or equal to 4 0 Less than or equal to 9 0 Less than or equal to 14 0 Less than or equal to 19 0 Less than or equal to 24 0 e. What proportion of patients needing emergency service wait 9 minutes or less? 0