题目内容
先后抛掷一枚骰子两次,记随机变量X为两次掷出的点数之和,则X的取值集合是
[ ]
A.
{1,2,3,4,5,6}
B.
{2,3,4,5,6,7}
C.
{2,4,6,8,10,12}
D.
{2,3,4,5,6,7,8,9,10,11,12}
答案:D
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题目内容
先后抛掷一枚骰子两次,记随机变量X为两次掷出的点数之和,则X的取值集合是
{1,2,3,4,5,6}
{2,3,4,5,6,7}
{2,4,6,8,10,12}
{2,3,4,5,6,7,8,9,10,11,12}