Suppose that in a bank the number of rejected cheques during a week in March is normally distributed with mean 30 cheques. And standard deviation 5 cheques.
- Find the probability that the number of rejected cheques is less than 33.
- Find the probability that the number of rejected cheques is at least 22.
- Find the probability that the number of rejected cheques is between 19 and 44.
- Find the 31th percentile.
- What's the expected number of rejected cheques during this week in March?
