2. 外语
  3. The numbers of passengers on 9 airline flights were 22, 33, 21, 28, 22, 31, 44, 50, and 19. The standard deviation of these 9 nu

The numbers of passengers on 9 airline flights were 22, 33, 21, 28, 22, 31, 44, 50, and 19. The standard deviation of these 9 nu

admin2015-04-10  24
问题 The numbers of passengers on 9 airline flights were 22, 33, 21, 28, 22, 31, 44, 50, and 19. The standard deviation of these 9 numbers is approximately equal to 10.2.
(a)Find the mean, median, mode, range, and interquartile range of the 9 numbers.
(b)If each flight had had 3 times as many passengers, what would have been the mean, median, mode, range, interquartile range, and standard deviation of the 9 numbers?
(c)If each flight had had 2 fewer passengers, what would have been the interquartile range and standard deviation of the 9 numbers?
选项
答案interquartile range = 17, standard deviation≈10.2
解析
转载请注明原文地址:https://jikaoti.com/ti/zwdYFFFM
本试题收录于： GRE QUANTITATIVE题库GRE分类
0

GRE QUANTITATIVE

GRE

相关试题推荐
随机试题
最新回复(0)