初中3年级 - 杂文 阅读指导

The distribution of c section performed by male doctors is skewed to the right. While the distribution of c- sections performed by female doctors is approximately symmetric. Since the distribution of c-sections performed by men is skewed right, we will compare using median and IQR. The typical number of c-sections performed by mean is 34, while the typical number performed by women is 18.5. The IQR for the distributions performed by men is 23and for the distributions of c section performed by women is 19. In addition, the numbers of c- sections performed by men ranges from 20 to 68, a range of 66, while the c-section performed by female ranges from 5 to 33, a range of 28. There is nothing unusual in the distribution of c- sections performed by women. But there is a beg gap in the distribution of c-sections performed by men between 59 to 85. The 1.5IQR rule shows that 50+1.5(23) = 84.5, which is larger than 85 and 86. So these observations are potential outliers. We conclude that there is most likely a difference between the number of c- sections performed by men and women. First, the median number performed by men is 34, which is almost twice as large as the median. By women (18.5). Furthermore, the largest number of c-sections performed by women is 33, while men are more than that 50 percent of the time.