3.某种油菜籽在相同条件下的发芽试验结果如下:
由此可以估计油菜籽发芽的概率约为0.95(精确到0.01),其依据是频率的稳定性.
0 284422 284430 284436 284440 284446 284448 284452 284458 284460 284466 284472 284476 284478 284482 284488 284490 284496 284500 284502 284506 284508 284512 284514 284516 284517 284518 284520 284521 284522 284524 284526 284530 284532 284536 284538 284542 284548 284550 284556 284560 284562 284566 284572 284578 284580 284586 284590 284592 284598 284602 284608 284616 366461
| 每批粒数n | 100 | 300 | 400 | 600 | 1000 | 2020 | 3000 |
| 发芽的频数m | 96 | 283 | 344 | 552 | 948 | 1912 | 2848 |
| 发芽的频率 | 0.96 | 0.94 | 0.86 | 0.92 | 0.95 | 0.95 | 0.95 |