Below is a sample quantitative data set. 431.9 454.3 457.6 200.7 320.4 797.4 711.2 559.1 449.5 358.2 805.8 453 678.7 505.1 577.1 519.4 542.3 489 365.1 529.6 486.2 511 470.4 486.2 683.5 507.5 690.3 342.2 546.4 550.5 292.9 236.9 472.7 599.3 311.5 366 469.1 447.3 468.8 452.4 447.5 836.7 462.1 568.6 447.3 344.4 795.4 577.1 765 625.4 383.1 577.1 447.3 701 a. Find the first quartile for this data set. Q, = b. Find the third quartile for this data set. Q = c. Find the interquartile range for this data set. IQR =

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