=+64. Specimens of three different types of rope wire were selected, and the fatigue limit (MPa) was determined for each specimen, resulting in the accompanying data:

Type 1: 350 350 350 358 370 370 370 371 371 372 372 384 391 391 392 Type 2: 350 354 359 363 365 368 369 371 373 374 376 380 383 388 392 Type 3: 350 361 362 364 364 365 366 371 377 377 377 379 380 380 392