Here is a sample data set. 484 481.6 484.5 420.4 446.8 444.5 390.8 453.6 547.1 475.1 539.5 506.7 463.4 390.2 411.7 424.5 541.9 466.6 447.5 420.4 518.7 368.2 410.9 544 347.1 457.5 485.4 485.4 589.4 355.2 464.4 554.6 512.5 463.5 303.4 503.3 482.2 386.6 423.2 429.5 420.4 422.7 485.4 407.3 498.2 444.6 398.3 359.6 456 451.1 530.7 442.7 453.6 422.9 Find the first quartile for this data set. Q = Find the third quartile for this data set. Q3= Find the interquartile range for this data set. IQR =