Question

Find the area of the shaded region. The graph to the right depicts IQ scores of adults, and those scores are normally distributed with a mean of 100 and a standard deviation of 15

Answer 1

It's a bit difficult to help without a complete statement :)

But anyway, if you're looking for an area, you have to integrate the equation that defines the curve associated to the depiction you want, with 85 being the lower limit, and 115 the higher one.

If you could give us a bit more of information, specifically the equation, I'll help you as much as I can.