Breathing Rates The number of times x an adult human breathes per minute when at rest depends on the age of the human and varies greatly from person to person. Suppose the probability distribution for...

Breathing Rates
The number of times x an adult human breathes per minute when at rest depends on the age of the human and varies greatly from person to person. Suppose the probability distribution for x is approximately normal, with the mean equal to 16 and the standard deviation equal to 4. If a person is selected at random and the number x of breaths per minute while at rest is recorded, what is the probability that x will exceed 22?