单项选择题

25% of a sample of 300 professional golfers indicate that their parents did not play golf. Based on this sample, we estimate that the 25% figure holds for the parents of all professional golfers. This is an example of statistical inference. A. 对 B. 错

题目列表

你可能感兴趣的试题

问答题

根据形成的原因,路面车辙可以分为_____________、_____________和 磨耗型车辙。

答案: 失稳性车辙;结构性车辙
问答题

将外部中断1设置为下降沿触发的方法是(  )。

答案: IT1=1
微信扫码免费搜题