Kwan recorded two sets of data. Set 1: 9, 13, 6, 18, 15, 19, 20 Median: 15 Lower Quartile: 9 Upper Quartile: 19 Range: 14 IQR: 1
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Sonal went to school for 219 days in a full year. if her attendance is 75 percent find the number of days on which the school was open
