We use statistics to give ourselves an informed view on a subject of interest. This problem explores how to scale countries on a map to represent characteristics other than land area.
Given a probability density function find the mean, median and mode of the distribution.
Your data is a set of positive numbers. What is the maximum value that the standard deviation can take?
The probability that a passenger books a flight and does not turn up is 0.05. For an aeroplane with 400 seats how many tickets can be sold so that only 1% of flights are over-booked?