2. 职称英语
  3. 从前100个正整数中选出两个数a和bQuantity A: the probability that both a and b are even intege

从前100个正整数中选出两个数a和bQuantity A: the probability that both a and b are even intege

游客2024-01-12  70
问题 从前100个正整数中选出两个数a和b
Quantity A: the probability that both a and b are even integers
Quantity B: the probability that (a+b) is even integer
选项 A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案 B
解析 偶数=偶数+偶数=奇数+奇数，所以a+b为偶数的概率=a，b同为奇数的概率+a，b同为偶数的概率，因此选择B。
转载请注明原文地址:https://tihaiku.com/zcyy/3354813.html
相关试题推荐
随机试题
最新回复(0)