| A local university has 16,000 students. Of these 16,000 160 are registered for one course 800 are registered for two courses 2560 are registered for three courses 5600 are registered for four courses 4800 are registered for five courses 1920 are registered for six courses 160 are registered for seven courses If a student is selected at random what is the probability he/she takes 5 or more courses & what is the expected value of the number of his/her courses. |