Question

Find the first quartile, the third quartile, and the interquartile range for each data set.

(a) {21, 18, 38, 34, 30, 51, 21, 34}

first quartile _________________

third quartile _________________

interquartile range ______________

(b)  {13.1, 7.8, 12.6, 2.3, 6.7, 2.3, 7.4, 2.7, 8.4, 6.6, 6.8, 5.1, 2.2, 5.6, 5.5, 2.1, 7.7, 13.9, 1.6, 1.7}

  

first quartile _________________

third quartile _________________

interquartile range _____________

(C) {−13, −13, −7, −15, −21, −10, −21, −20, −25, −15}

first quartile _________________

third quartile _________________

interquartile range _____________

(d) {43.6, 43.5, 59.5, 52.3, 50.9, 39.7, 42.4, 58.5, 40.9, 38.5, 44.2, 60.3, 72.2, 34.8, 46, 54.7, 51, 54.3, 49.7, 62.9, 44.6, 61.3, 52.4, 43.9, 68.8, 59.2, 57.1, 70.5, 52.3, 49.5}

  

first quartile _________________

third quartile _________________

interquartile range _____________

Answer 1