Using the IQ population distribution with a mean of 100 and a standard deviation of 15 answer the following:

1. What proportion of people have an IQ above 115? 0.1586= 15.86%
2. What proportion of people have an IQ below 70? 0.97725=97.73%
3. What proportion of people have an IQ between 80 and 117? .4549=45.48%
4. What would the mean of a sampling distribution be of this population with a sample size of 36? 16.6

What would the standard deviation