The number of incidents in which police were needed for a sample of 12 schools in one county is: 12 31 11 45 33 44 9 47 4 36 2 26 Find the first and third quartiles for the data. Part 1 of 2 X First quartile O is 9 ]. Correct Answer: First quartile Q is 10. Part 2 of 2 X Third quartile O, is 36 . Correct Answer: Third quartile O, is 40.2 4 9 12 26 3/ 33 30 4 45 81 = BS =- 24. 2 - 3 1 =Bin 720 - 12 36