2. 外语
  3. A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4 purple, and 1 black. If a jelly bean is to be ch

A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4 purple, and 1 black. If a jelly bean is to be ch

admin2021-10-21  81
问题 A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4 purple, and 1 black. If a jelly bean is to be chosen at random, what is the probability that the jelly bean will be neither purple nor red?
选项 A、0.09
B、0.11
C、0.55
D、0.91
E、0.96
答案D
解析 这道题目没有什么陷阱，是一道普通的概率题。100个beans中取出为red or purple的概率为9/100，那么neither purple no red的概率即为1-9/100=0.91。
转载请注明原文地址:https://www.kaotiyun.com/show/E3tO777K
本试题收录于： GMAT QUANTITATIVE题库GMAT分类
0

GMAT QUANTITATIVE

GMAT

相关试题推荐
随机试题
最新回复(0)