Suppose IQ scores are normally distributed with a mean of 100 and a standard deviation of 16.
a) Draw and label a graph that shows all the information relevant to the problem, including the answer to (b).
b) Find the IQ score of someone who scores below exactly 23% of the population. If working this by hand, show all work. Add all this information to the graph above. If using calculator functions, write out exactly the command you enter.
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