Question: the university of new south wales library checks out an...
The University of New South Wales Library checks out an average of 2556 books per day, with a standard deviation of 482 books per day. Assuming that the distribution of books checked out per day is well approximated by a normal distribution, determine (to 4 dec pl) Use z table, not cas calculator.
1. the probability that on any given day, the number of books checked out is between 1500 and 3500, (4 decimal places)
2. the probability that the average daily lending activity over a two month (i.e. 60 day) period exceeds 2720 books per day. (4 decimal places)