February 5, the third period of Thursday morning, math class.
Gao Heshuai's booming voice rang out: "Let's look at the final problem. A university math department plans to hold two psychological testing events with different themes on Saturday and Sunday, respectively overseen by Teacher Li and Teacher Zhang. Given that there are $n$ students in the department..."
"(Ⅰ) Find the probability that student A of the department receives the activity notification message sent by Teacher Li or Teacher Zhang;
(Ⅱ) Find the integer $m$ that makes $P(X=m)$ reach its maximum value."
Chapter 795