3. [-/12.35 Points] DETAILS ILLOWSKYINTROSTAT1 2.C.118.HW. MY NOTES ASK YOUR TEACHER In a recent issue of the IEEE Spectrum, 84 engineering conferences were announced. Four conferences lasted two days. Thirty-six lasted three days. Eighteen lasted four days. Nineteen lasted five days. Four lasted six days. One lasted seven days. One lasted eight days. One lasted nine days. Let X = the length (in days) of an engineering conference. Part (a) Organize the data in a chart. (Round your answers to four decimal places.) X Frequency Relative Frequency Cumulative Relative Frequency 2 3 4 5 6 7 8 9 Part (b) Find the median. | days Find the first quartile. days Find the third quartile. days Part (c) Find the 65th percentile. days