You are in charge of reviewing the IQs of military
personnel stationed at Rota.You know that IQ scores are normally
distributed with a mean of 100 and standard deviation of 15.Base
housing has 200 occupants and you have determined that results of
their IQ testing mimic the population as a whole.At a briefing your
colonel wants to know how many of these soldiers have an IQ
of

At least 100

Between 85 and 115

Not more than 70

What answers do you provide the colonel?