Question

find the lower quartile of the data set 593,588,540,434,420,398,390,375

Answer 1

First Quartile Q1 = 394

Second Quartile Q2 = 427

Third Quartile Q3 = 564

Interquartile Range IQR = 170

Median = Q2 x˜ = 427

Minimum Min = 375

Maximum Max = 593

Range R = 218

Answer 2

Lower quartile is 394