In 1998, Mark McGwire of the St. Louis Cardinals set the record for the most home runs hit in a season by hitting 70 home runs. Three years later in 2001, Barry Bonds of the San Francisco Giants broke McGwire€™s record by hitting 73 home runs. The following data represent the distances, in feet, of each player€™s home runs in his record-setting season.
(a) Construct a back-to-back stem-and-leaf plot.
(b) Compare the two populations. What can you conclude from the back-to-back stem-and-leaf plot?

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Mark McGwire 370 440 380 550 480 410 470 450 452 369 430 420 360 370 430 420 380 360 420 390 430 388 350 450 440 400 390 380 470 390 510 380 430 440 340 460 350 527 420 425 423 410 430 461 510 430 398 500 450 341 385 377 370 410 478 390 450 410 370 360 430 420 460 458 380 409 385 470 400 Barry Bonds 410 370 420 410 410 436 420 380 420 430 410 440 430 391 410 410 390 420 440 390 320 420 400 360 410415 410 430380 420 400 450 375 375347 380 429 320 360 375 370 440400 405 430 350 430 400 435 420 420 488 361 394 360 396 410 380 380 375 410 365 385 411 440 435 454 442 404