大学概率题 急 高手进！！！！！

来源：百度知道 编辑：UC知道 时间：2024/05/10 13:51:17
let X be the maximum of the number of heads obtained when Carlos and Michael each flip a fair coin twice.

(d) Suppose that Carlos uses a coin with probability of heads p=3/4.find the pmf of X

Your question is not complete.

"let X be the maximum of the number of heads obtained when Carlos and Michael each flip a fair coin twice."
----- This statement is wrong. It is easy to see that X=4 which is a constant number.

Please type the complete question down.