题目
In a box of 5 eggs, 2 are rotten
Quantity A
The probability that one egg chosen at random from the box is rotten
Quantity B
The probability that two eggs chosen at random from the box are rotten
选项
A.The quantity in Column A is greater.
B.The quantity in Column B is greater.
C.The two quantities are equal.
D.The relationship cannot be determined from the information given.
解析
A项:
5个鸡蛋中有2个是坏的
因此,P(1个鸡蛋是坏的) = 2/5 = 0.4
B项:
P(2个鸡蛋都是坏的) = P(第一个鸡蛋是坏的 **且** 第二个鸡蛋是坏的)
= P(第一个鸡蛋是坏的) × P(第二个鸡蛋是坏的)
= 2/5 × 1/4 = 1/10 = 0.1
答案:A