The times in minutes it took 16 students to complete a logic puzzle are listed below. find the median, the upper and lower quartiles, the interquartile range, and the range of the data. {15, 11, 9, 15, 12, 10, 18, 16, 14, 22, 13, 20, 17, 12, 18, 19}

Astudent draws two parabolas both parabolas cross the x axis at (-4,0) and (6,0) the y intercept of the first parabolas is (0,-12). the y intercept of the second parabola is (0,-24) what is the positive difference between the a values for the two functions that describe the parabolas