URGENT I NEED HELP QUICK CORRECT ANSWERS PLEASE

Question 1 5 pts Consider the following processes, their parameters (arrival time, CPU burst duration and priority): ID Arrival ime Burat tire I Briority 1084 2363 4 105 2 What is the average waiting time for preemptive priority scheduler ? 6.2500 Question 2 5 pts On which events is the CPU scheduler invoked for a kernel with cooperative scheduling? when a process calls exit O when the time slice of a process expires O when a process makes a read system call to read from a file O when an I/O interrupt occurs and the running process switches from the running state to the ready state