The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). The mean maximum oxygen uptake for elite athletes has been found to be 69 with a standard deviation of 8.2. Assume that the distribution is approximately normal.

Find the probability that an elite athlete has a maximum oxygen uptake of at least 88.68 ml/kg.


Find the probability that an elite athlete has a maximum oxygen uptake of at most 44.4 ml/kg.


Find the probability that an elite athlete has a maximum oxygen uptake of 44.4 ml/kg.