Question content area top Part 1 A cellular phone company monitors monthly phone usage. The following data represent the monthly phone use in minutes of one particular customer for the past 20 months. Use the given data to answer parts​ (a) and​ (b). 327 482 497 524 350 558 457 367 451 493 554 467 443 372 339 331 344 541 422 439



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